diff --git a/apps/desktop/src/components/grid/DataGrid.vue b/apps/desktop/src/components/grid/DataGrid.vue
index cb51527263..1fda58e19b 100644
--- a/apps/desktop/src/components/grid/DataGrid.vue
+++ b/apps/desktop/src/components/grid/DataGrid.vue
@@ -305,6 +305,7 @@ import { createDataGridRuntimeScope } from "@/lib/dataGrid/dataGridRuntime";
 import { useDataGridEditor } from "@/composables/useDataGridEditor";
 import { useDataGridSort } from "@/composables/useDataGridSort";
 import { useDataGridSearch, type DataGridSearchMatch } from "@/composables/useDataGridSearch";
+import { findDataGridReplacementMatches, replaceDataGridText, type DataGridReplaceScope } from "@/lib/dataGrid/dataGridReplace";
 import { useDataGridResultLifecycle } from "@/composables/useDataGridResultLifecycle";
 import { useDataGridAutoRefresh } from "@/composables/useDataGridAutoRefresh";
 import { useDataGridAsyncSurface } from "@/composables/useDataGridAsyncSurface";
@@ -1012,11 +1013,21 @@ const transposeScrollLeft = ref(0);
 const transposeViewportWidth = ref(0);
 const { sortColumn: sortCol, sortColumnIndex: sortColIndex, sortDirection: sortDir, sortMode, setSort, clearSort } = useDataGridSort();
 const searchBarRef = ref<{ focus: (select?: boolean) => void } | null>(null);
+const replaceOpen = ref(false);
+const replacementText = ref("");
+const replaceScope = ref<DataGridReplaceScope>("loaded");
+const replaceCaseSensitive = ref(false);
+const replaceColumn = ref(-1);
 const dataGridSearch = useDataGridSearch({
   columns: () => props.result.columns,
   suggestionColumns: () => props.tableMeta?.columns.map((column) => column.name) ?? props.result.columns,
   rows: () => displayItems.value,
   getCellSearchText: (row, columnIndex) => (row.data[columnIndex] === null ? "" : rowLowerTextCache.get(row.data, columnIndex)),
+  getCellRawSearchText: (row, columnIndex) => (typeof row.data[columnIndex] === "string" ? (row.data[columnIndex] as string) : replaceOpen.value ? "" : String(row.data[columnIndex] ?? "")),
+  caseSensitive: () => replaceOpen.value && replaceCaseSensitive.value,
+  literalQuery: replaceOpen,
+  includeColumnMatches: () => !replaceOpen.value,
+  isCellSearchable: (row, columnIndex) => !replaceOpen.value || (canReplaceGridCell(row, columnIndex) && replacementCellInScope(row.id, columnIndex)),
   onNavigate: () => nextTick(scrollToCurrentMatch),
   // Same key as useDataGridEditor below: table data tabs use the tab id, query
   // results use resultGridInstanceKey so a re-execute starts with a clean search.
@@ -1724,12 +1735,23 @@ function focusSearch(target: Element | null = null): boolean {
 }
 
 function closeSearch() {
+  replaceOpen.value = false;
   dataGridSearch.close();
 }
 
 const PAIRS: Record<string, string> = { "'": "'", '"': '"', "(": ")" };
 
 function onSearchKeydown(e: KeyboardEvent) {
+  if (replaceOpen.value) {
+    if (isCancelSearchShortcut(e)) {
+      e.preventDefault();
+      closeSearch();
+    } else if (e.key === "Enter") {
+      e.preventDefault();
+      navigateMatch(e.shiftKey ? -1 : 1);
+    }
+    return;
+  }
   if (e.key in PAIRS && !e.ctrlKey && !e.metaKey) {
     const input = e.target as HTMLInputElement;
     const start = input.selectionStart ?? 0;
@@ -3704,6 +3726,7 @@ const {
   commitEditAndMaybeAutoSave,
   commitEditFromBlur,
   applyCellValue,
+  stageCellReplacements,
   restoreCellValue,
   cancelEdit,
   onEditKeydown,
@@ -4367,7 +4390,7 @@ const rollbackToolbarCapability = computed<DataGridToolbarActionCapability>(() =
 const sortedRows = computed(() => {
   let indices = localFilteredRows.value;
   const q = deferredClientSearchText.value;
-  if (q && dataGridSearchMode.value === "filter") {
+  if (q && dataGridSearchMode.value === "filter" && !replaceOpen.value) {
     // Preserve the legacy Ctrl+F behavior when the user chooses row filtering.
     const rows = props.result.rows;
     indices = indices.filter((sourceIndex) => {
@@ -4771,7 +4794,7 @@ const deleteRowDetails = computed(() => {
 });
 
 const hasVisibleRows = computed(() => displayRowCount.value > 0);
-const hasActiveFilter = computed(() => (dataGridSearchMode.value === "filter" && !!deferredClientSearchText.value) || rowStatusFilter.value !== "all" || hasLocalColumnFilters.value || hasServerColumnFilters.value);
+const hasActiveFilter = computed(() => (dataGridSearchMode.value === "filter" && !replaceOpen.value && !!deferredClientSearchText.value) || rowStatusFilter.value !== "all" || hasLocalColumnFilters.value || hasServerColumnFilters.value);
 const emptyTitle = computed(() => (hasActiveFilter.value ? t("grid.noFilteredRows") : t("grid.noRows")));
 const emptyDescription = computed(() => (hasActiveFilter.value ? t("grid.noFilteredRowsDescription") : t("grid.noRowsDescription")));
 watch(
@@ -8059,6 +8082,84 @@ function selectedRangeTargetsOnlyDraftRow(): boolean {
   return displayItemAt(range.startRow)?.isDraft === true;
 }
 
+const replaceAvailable = computed(() => !!props.editable && hasDataGridSaveTarget.value && canEditExistingRows.value && !resolvedConnectionConfig.value?.read_only && !isConditionalUpdateActive.value);
+const replaceBusy = computed(() => isSaving.value || gridSurfaceBusy.value || props.loading === true);
+
+function replacementRowItem(rowId: number): RowItem | undefined {
+  const row = props.result.rows[rowId];
+  if (!row || rowId < 0) return undefined;
+  return { id: rowId, displayIndex: displayRowIndexById(rowId), sourceIndex: rowId, data: rowDataWithChanges(row, rowId), isNew: false, isDeleted: deletedRows.value.has(rowId), isDirtyCol: [], status: dirtyRows.value.has(rowId) ? "edited" : "clean" };
+}
+
+function canReplaceGridCell(item: RowItem | undefined, col: number): boolean {
+  const type = allColumnTypes.value[col];
+  return (
+    replaceAvailable.value &&
+    !!item &&
+    item.sourceIndex !== undefined &&
+    !item.isNew &&
+    !item.isDraft &&
+    typeof item.data[col] === "string" &&
+    canEditCellItem(item, col) &&
+    !isLargeValuePreview(item, col) &&
+    !isBinaryCellColumnType(type) &&
+    !isNumericColumnType(type) &&
+    !isBooleanGridCell(item, col)
+  );
+}
+
+function replacementCellInScope(rowId: number, col: number): boolean {
+  if (replaceScope.value === "loaded") return true;
+  if (replaceScope.value === "column") return col === replaceColumn.value;
+  const rowIndex = displayRowIndexById(rowId);
+  const visibleCol = visibleColumnIndexes.value.indexOf(col);
+  return rowIndex >= 0 && visibleCol >= 0 && (cellIsSelected(rowIndex, visibleCol) || isRowSelected(rowId) || columnIsSelected(visibleCol));
+}
+
+const replacementMatches = computed(() => {
+  if (!replaceOpen.value || !replaceAvailable.value) return [];
+  const items = new Map(props.result.rows.map((_, rowId) => [rowId, replacementRowItem(rowId)!]));
+  return findDataGridReplacementMatches({
+    rows: [...items.values()].map((item) => ({ rowId: item.id, data: item.data })),
+    search: deferredClientSearchText.value,
+    caseSensitive: replaceCaseSensitive.value,
+    includesCell: replacementCellInScope,
+    canReplaceCell: (rowId, col) => canReplaceGridCell(items.get(rowId), col),
+  });
+});
+
+const canReplaceCurrent = computed(() => {
+  if (searchText.value !== deferredClientSearchText.value) return false;
+  const match = currentSearchMatch.value;
+  if (!match || match.kind !== "cell") return false;
+  const item = displayItemAt(match.displayRow);
+  return !!item && replacementMatches.value.some((candidate) => candidate.rowId === item.id && candidate.col === match.col);
+});
+
+watch([replaceOpen, replaceScope], () => {
+  if (!replaceOpen.value || replaceScope.value !== "column") return;
+  const selectionCol = selectionFocus.value?.colIndex ?? [...selectedColumnIndexes.value][0];
+  replaceColumn.value = selectionCol !== null && selectionCol !== undefined ? actualColumnIndex(selectionCol) : (currentSearchMatch.value?.col ?? visibleColumnIndexes.value[0] ?? -1);
+});
+
+watch(
+  () => props.result,
+  () => {
+    replaceOpen.value = false;
+    replaceColumn.value = -1;
+  },
+);
+
+function replaceGridMatches(currentOnly = false) {
+  if (!replaceAvailable.value || replaceBusy.value) return;
+  if (currentOnly && !canReplaceCurrent.value) return;
+  const current = currentSearchMatch.value;
+  const currentRowId = current?.kind === "cell" ? displayItemAt(current.displayRow)?.id : undefined;
+  const matches = replacementMatches.value.filter((match) => !currentOnly || (match.rowId === currentRowId && match.col === current?.col));
+  const count = stageCellReplacements(matches.map((match) => ({ ...match, previousValue: match.value, value: replaceDataGridText(match.value, deferredClientSearchText.value, replacementText.value, replaceCaseSensitive.value) })));
+  if (count > 0) toast(t("grid.replaceStagedCells", { count }), 5000);
+}
+
 function fillSelectionWithValue(value: string | null, options: { preserveEmptyString?: boolean; emptyStringAsNull?: boolean } = {}): boolean {
   const range = selectedRange.value;
   let applied = false;
@@ -11842,6 +11943,16 @@ useUpdateBlocker(() => (hasPendingChanges.value || hasPendingDataEditorDraft.val
             <DataGridSearchBar
               ref="searchBarRef"
               v-model:text="searchText"
+              v-model:replace-open="replaceOpen"
+              v-model:replacement-text="replacementText"
+              v-model:replace-scope="replaceScope"
+              v-model:case-sensitive="replaceCaseSensitive"
+              v-model:replace-column="replaceColumn"
+              :replace-available="replaceAvailable"
+              :replace-busy="replaceBusy"
+              :replace-match-count="replacementMatches.length"
+              :can-replace-current="canReplaceCurrent"
+              :columns="props.result.columns"
               :open="searchOverlayVisible"
               :suggestions="searchSuggestions"
               :suggestion-index="suggestionIndex"
@@ -11851,6 +11962,8 @@ useUpdateBlocker(() => (hasPendingChanges.value || hasPendingDataEditorDraft.val
               :values-truncated="(props.result.large_value_cells?.length ?? 0) > 0"
               @keydown="onSearchKeydown"
               @navigate="navigateMatch"
+              @replace-current="replaceGridMatches(true)"
+              @replace-all="replaceGridMatches()"
               @close="closeSearch"
               @accept-suggestion="
                 suggestionIndex = $event;
diff --git a/apps/desktop/src/components/grid/DataGridSearchBar.vue b/apps/desktop/src/components/grid/DataGridSearchBar.vue
index a7a912255e..fb47bd2734 100644
--- a/apps/desktop/src/components/grid/DataGridSearchBar.vue
+++ b/apps/desktop/src/components/grid/DataGridSearchBar.vue
@@ -1,29 +1,45 @@
 <script setup lang="ts">
 import { ref } from "vue";
-import { ChevronDown, ChevronUp, Search, X } from "@lucide/vue";
+import { CaseSensitive, ChevronDown, ChevronRight, ChevronUp, Search, X } from "@lucide/vue";
 import { useI18n } from "vue-i18n";
 import { vNamingStyleSupport } from "@/directives/vNamingStyleSupport";
+import type { DataGridReplaceScope } from "@/lib/dataGrid/dataGridReplace";
 
 const { t } = useI18n();
 
-const props = defineProps<{
-  open: boolean;
-  suggestions: string[];
-  suggestionIndex: number;
-  matchCount: number;
-  currentMatchIndex: number;
-  hasDeferredSearchText: boolean;
-  /** 结果里含被截断显示的长值（large_value_cells），搜索只覆盖显示文本。 */
-  valuesTruncated?: boolean;
-}>();
+const props = withDefaults(
+  defineProps<{
+    open: boolean;
+    suggestions: string[];
+    suggestionIndex: number;
+    matchCount: number;
+    currentMatchIndex: number;
+    hasDeferredSearchText: boolean;
+    /** 结果里含被截断显示的长值（large_value_cells），搜索只覆盖显示文本。 */
+    valuesTruncated?: boolean;
+    replaceAvailable?: boolean;
+    replaceBusy?: boolean;
+    replaceMatchCount?: number;
+    canReplaceCurrent?: boolean;
+    columns?: string[];
+  }>(),
+  { replaceAvailable: undefined },
+);
 
 const searchText = defineModel<string>("text", { default: "" });
+const replaceOpen = defineModel<boolean>("replaceOpen", { default: false });
+const replacementText = defineModel<string>("replacementText", { default: "" });
+const replaceScope = defineModel<DataGridReplaceScope>("replaceScope", { default: "loaded" });
+const caseSensitive = defineModel<boolean>("caseSensitive", { default: false });
+const replaceColumn = defineModel<number>("replaceColumn", { default: -1 });
 const emit = defineEmits<{
   keydown: [event: KeyboardEvent];
   close: [];
   navigate: [delta: number];
   acceptSuggestion: [index: number];
   hoverSuggestion: [index: number];
+  replaceCurrent: [];
+  replaceAll: [];
 }>();
 
 const searchInput = ref<HTMLInputElement>();
@@ -48,66 +64,124 @@ defineExpose({
 
 <template>
   <Transition enter-active-class="transition-opacity duration-150" leave-active-class="transition-opacity duration-100" enter-from-class="opacity-0" leave-to-class="opacity-0">
-    <div v-if="props.open" class="absolute top-1 right-2 z-20 flex items-center gap-1 px-2 py-1 bg-background border rounded-md shadow-md">
-      <Search class="w-3.5 h-3.5 text-muted-foreground shrink-0" />
-      <input
-        ref="searchInput"
-        v-model="searchText"
-        v-naming-style-support
-        type="search"
-        autocapitalize="off"
-        autocomplete="off"
-        autocorrect="off"
-        spellcheck="false"
-        class="w-48 h-5 min-w-0 text-xs bg-transparent outline-none placeholder:text-muted-foreground"
-        :placeholder="t('grid.search')"
-        @keydown="emit('keydown', $event)"
-      />
-      <div v-if="props.suggestions.length > 0" class="absolute top-full right-0 mt-0.5 z-50 min-w-[180px] rounded-md border bg-popover text-popover-foreground shadow-md">
-        <div
-          v-for="(suggestion, index) in props.suggestions"
-          :key="suggestion"
-          class="flex items-center px-3 py-1.5 text-xs cursor-pointer"
-          :class="index === props.suggestionIndex ? 'bg-accent text-accent-foreground' : 'hover:bg-gray-200 dark:hover:bg-gray-800'"
-          @mousedown="onSuggestionMouseDown($event, index)"
-          @mouseenter="emit('hoverSuggestion', index)"
+    <div v-if="props.open" data-grid-search-bar class="absolute top-1 right-2 z-20 max-w-[calc(100%-1rem)] px-2 py-1 bg-background border rounded-md shadow-md" @keydown.esc.stop.prevent="emit('close')">
+      <div class="flex items-center gap-1 min-w-0">
+        <button
+          v-if="props.replaceAvailable !== undefined"
+          data-grid-replace-toggle
+          type="button"
+          class="shrink-0 text-muted-foreground hover:text-foreground"
+          :disabled="!props.replaceAvailable"
+          :title="t(replaceOpen ? 'editor.search.collapseReplace' : 'editor.search.expandReplace')"
+          :aria-label="t(replaceOpen ? 'editor.search.collapseReplace' : 'editor.search.expandReplace')"
+          :aria-expanded="replaceOpen"
+          @click="replaceOpen = !replaceOpen"
         >
-          <Search class="w-3 h-3 mr-2 text-muted-foreground shrink-0" />
-          <span>{{ suggestion }}</span>
+          <ChevronDown v-if="replaceOpen" class="w-3.5 h-3.5" />
+          <ChevronRight v-else class="w-3.5 h-3.5" />
+        </button>
+        <Search class="w-3.5 h-3.5 text-muted-foreground shrink-0" />
+        <input
+          ref="searchInput"
+          v-model="searchText"
+          v-naming-style-support
+          type="search"
+          autocapitalize="off"
+          autocomplete="off"
+          autocorrect="off"
+          spellcheck="false"
+          class="w-48 h-5 min-w-0 flex-1 text-xs bg-transparent outline-none placeholder:text-muted-foreground"
+          :placeholder="t('grid.search')"
+          @keydown="emit('keydown', $event)"
+        />
+        <button
+          v-if="replaceOpen"
+          data-grid-replace-case
+          type="button"
+          class="shrink-0 rounded p-0.5 text-muted-foreground hover:text-foreground"
+          :class="caseSensitive ? 'bg-accent text-accent-foreground' : ''"
+          :title="t('editor.search.caseSensitive')"
+          :aria-label="t('editor.search.caseSensitive')"
+          :aria-pressed="caseSensitive"
+          @click="caseSensitive = !caseSensitive"
+        >
+          <CaseSensitive class="w-3.5 h-3.5" />
+        </button>
+        <div v-if="props.suggestions.length > 0" class="absolute top-full right-0 mt-0.5 z-50 min-w-[180px] rounded-md border bg-popover text-popover-foreground shadow-md">
+          <div
+            v-for="(suggestion, index) in props.suggestions"
+            :key="suggestion"
+            class="flex items-center px-3 py-1.5 text-xs cursor-pointer"
+            :class="index === props.suggestionIndex ? 'bg-accent text-accent-foreground' : 'hover:bg-gray-200 dark:hover:bg-gray-800'"
+            @mousedown="onSuggestionMouseDown($event, index)"
+            @mouseenter="emit('hoverSuggestion', index)"
+          >
+            <Search class="w-3 h-3 mr-2 text-muted-foreground shrink-0" />
+            <span>{{ suggestion }}</span>
+          </div>
         </div>
-      </div>
-      <!-- 截断标记：表格预览对长文本/JSON 值做服务端截断，客户端搜索只能覆盖
+        <!-- 截断标记：表格预览对长文本/JSON 值做服务端截断，客户端搜索只能覆盖
            显示前缀，匹配数可能少于 SQL 查询（#7279）。 -->
-      <span v-if="props.valuesTruncated && (props.matchCount > 0 || props.hasDeferredSearchText)" data-grid-search-truncated-hint class="text-xs text-amber-600 dark:text-amber-400 shrink-0 cursor-help" :title="t('grid.searchTruncatedValuesHint')" :aria-label="t('grid.searchTruncatedValuesHint')"
-        >≈</span
-      >
-      <span v-if="props.matchCount > 0" class="text-xs text-muted-foreground shrink-0">{{ props.currentMatchIndex + 1 }}/{{ props.matchCount }}</span>
-      <span v-else-if="props.hasDeferredSearchText" class="text-xs text-muted-foreground shrink-0">0</span>
-      <button
-        type="button"
-        class="text-muted-foreground hover:text-foreground disabled:opacity-40 disabled:pointer-events-none shrink-0"
-        :disabled="props.matchCount === 0"
-        :title="t('search.prevMatch')"
-        :aria-label="t('search.prevMatch')"
-        @mousedown="keepSearchInputFocused"
-        @click="emit('navigate', -1)"
-      >
-        <ChevronUp class="w-3.5 h-3.5" />
-      </button>
-      <button
-        type="button"
-        class="text-muted-foreground hover:text-foreground disabled:opacity-40 disabled:pointer-events-none shrink-0"
-        :disabled="props.matchCount === 0"
-        :title="t('search.nextMatch')"
-        :aria-label="t('search.nextMatch')"
-        @mousedown="keepSearchInputFocused"
-        @click="emit('navigate', 1)"
-      >
-        <ChevronDown class="w-3.5 h-3.5" />
-      </button>
-      <button type="button" class="text-muted-foreground hover:text-foreground shrink-0" :title="t('search.close')" :aria-label="t('search.close')" @click="emit('close')">
-        <X class="w-3.5 h-3.5" />
-      </button>
+        <span v-if="props.valuesTruncated && (props.matchCount > 0 || props.hasDeferredSearchText)" data-grid-search-truncated-hint class="text-xs text-amber-600 dark:text-amber-400 shrink-0 cursor-help" :title="t('grid.searchTruncatedValuesHint')" :aria-label="t('grid.searchTruncatedValuesHint')"
+          >≈</span
+        >
+        <span v-if="props.matchCount > 0" class="text-xs text-muted-foreground shrink-0">{{ props.currentMatchIndex + 1 }}/{{ props.matchCount }}</span>
+        <span v-else-if="props.hasDeferredSearchText" class="text-xs text-muted-foreground shrink-0">0</span>
+        <button
+          type="button"
+          class="text-muted-foreground hover:text-foreground disabled:opacity-40 disabled:pointer-events-none shrink-0"
+          :disabled="props.matchCount === 0"
+          :title="t('editor.search.prevMatch')"
+          :aria-label="t('editor.search.prevMatch')"
+          @mousedown="keepSearchInputFocused"
+          @click="emit('navigate', -1)"
+        >
+          <ChevronUp class="w-3.5 h-3.5" />
+        </button>
+        <button
+          type="button"
+          class="text-muted-foreground hover:text-foreground disabled:opacity-40 disabled:pointer-events-none shrink-0"
+          :disabled="props.matchCount === 0"
+          :title="t('editor.search.nextMatch')"
+          :aria-label="t('editor.search.nextMatch')"
+          @mousedown="keepSearchInputFocused"
+          @click="emit('navigate', 1)"
+        >
+          <ChevronDown class="w-3.5 h-3.5" />
+        </button>
+        <button type="button" class="text-muted-foreground hover:text-foreground shrink-0" :title="t('editor.search.close')" :aria-label="t('editor.search.close')" @click="emit('close')">
+          <X class="w-3.5 h-3.5" />
+        </button>
+      </div>
+      <div v-if="replaceOpen" class="flex flex-wrap items-center gap-1 mt-1 border-t pt-1">
+        <input
+          v-model="replacementText"
+          data-grid-replacement-input
+          type="text"
+          autocomplete="off"
+          spellcheck="false"
+          class="h-6 min-w-0 w-48 flex-1 text-xs bg-transparent outline-none border rounded px-1.5"
+          :placeholder="t('grid.replaceText')"
+          :aria-label="t('grid.replaceText')"
+          @keydown.enter.stop.prevent="props.replaceAvailable && !props.replaceBusy && props.canReplaceCurrent && emit('replaceCurrent')"
+        />
+        <button data-grid-replace-current type="button" class="h-6 border rounded px-2 text-xs disabled:opacity-40" :disabled="!props.replaceAvailable || props.replaceBusy || !props.canReplaceCurrent" :title="t('grid.replaceCurrentCell')" @click="emit('replaceCurrent')">
+          {{ t("editor.search.replace") }}
+        </button>
+        <button data-grid-replace-all type="button" class="h-6 border rounded px-2 text-xs disabled:opacity-40" :disabled="!props.replaceAvailable || props.replaceBusy || !props.replaceMatchCount" @click="emit('replaceAll')">{{ t("editor.search.replaceAll") }}</button>
+      </div>
+      <div v-if="replaceOpen" class="flex flex-wrap items-center gap-1 mt-1 text-xs">
+        <select v-model="replaceScope" data-grid-replace-scope class="min-w-0 h-6 max-w-full rounded border bg-background px-1" :aria-label="t('grid.replaceScope')">
+          <option value="loaded">{{ t("grid.replaceLoadedResults") }}</option>
+          <option value="column">{{ t("grid.replaceCurrentColumn") }}</option>
+          <option value="selection">{{ t("grid.replaceSelectedCells") }}</option>
+        </select>
+        <select v-if="replaceScope === 'column'" v-model.number="replaceColumn" data-grid-replace-column class="h-6 min-w-0 flex-1 max-w-48 rounded border bg-background px-1" :aria-label="t('grid.replaceCurrentColumn')">
+          <option :value="-1" disabled>{{ t("grid.replaceChooseColumn") }}</option>
+          <option v-for="(column, index) in props.columns" :key="index" :value="index">{{ column }}</option>
+        </select>
+        <span class="text-muted-foreground" aria-live="polite">{{ t("grid.replaceMatchedCells", { count: props.replaceMatchCount ?? 0 }) }}</span>
+      </div>
     </div>
   </Transition>
 </template>
diff --git a/apps/desktop/src/components/grid/__tests__/DataGridSearchReplace.spec.ts b/apps/desktop/src/components/grid/__tests__/DataGridSearchReplace.spec.ts
new file mode 100644
index 0000000000..798261df4e
--- /dev/null
+++ b/apps/desktop/src/components/grid/__tests__/DataGridSearchReplace.spec.ts
@@ -0,0 +1,86 @@
+// @vitest-environment happy-dom
+import { createApp, h, nextTick } from "vue";
+import { afterEach, describe, expect, it, vi } from "vitest";
+import DataGridSearchBar from "../DataGridSearchBar.vue";
+
+vi.mock("vue-i18n", () => ({ useI18n: () => ({ t: (key: string) => key }) }));
+const cleanup: (() => void)[] = [];
+afterEach(() => cleanup.splice(0).forEach((dispose) => dispose()));
+
+function mountBar(overrides: Record<string, unknown> = {}) {
+  const root = document.createElement("div");
+  document.body.append(root);
+  const replaceAll = vi.fn();
+  const replaceCurrent = vi.fn();
+  const changeText = vi.fn();
+  const changeScope = vi.fn();
+  const changeCase = vi.fn();
+  const app = createApp({
+    render: () =>
+      h(DataGridSearchBar, {
+        open: true,
+        suggestions: [],
+        suggestionIndex: -1,
+        matchCount: 2,
+        currentMatchIndex: 0,
+        hasDeferredSearchText: true,
+        replaceOpen: true,
+        replaceAvailable: true,
+        replaceMatchCount: 2,
+        canReplaceCurrent: true,
+        columns: ["first", "paths"],
+        onReplaceAll: replaceAll,
+        onReplaceCurrent: replaceCurrent,
+        "onUpdate:replacementText": changeText,
+        "onUpdate:replaceScope": changeScope,
+        "onUpdate:caseSensitive": changeCase,
+        ...overrides,
+      }),
+  });
+  app.mount(root);
+  cleanup.push(() => {
+    app.unmount();
+    root.remove();
+  });
+  return { root, replaceAll, replaceCurrent, changeText, changeScope, changeCase };
+}
+
+describe("DataGridSearchBar replacement controls", () => {
+  it("emits literal empty replacement input, scope and case choices and replacement commands", async () => {
+    const bar = mountBar();
+    const input = bar.root.querySelector<HTMLInputElement>("[data-grid-replacement-input]")!;
+    expect(input).not.toBeNull();
+    input.value = "$&";
+    input.dispatchEvent(new Event("input"));
+    expect(bar.changeText).toHaveBeenCalledWith("$&");
+    input.value = "";
+    input.dispatchEvent(new Event("input"));
+    expect(bar.changeText).toHaveBeenLastCalledWith("");
+    const scope = bar.root.querySelector<HTMLSelectElement>("[data-grid-replace-scope]")!;
+    scope.value = "selection";
+    scope.dispatchEvent(new Event("change"));
+    expect(bar.changeScope).toHaveBeenCalledWith("selection");
+    bar.root.querySelector<HTMLButtonElement>("[data-grid-replace-case]")!.click();
+    expect(bar.changeCase).toHaveBeenCalledWith(true);
+    bar.root.querySelector<HTMLButtonElement>("[data-grid-replace-all]")!.click();
+    bar.root.querySelector<HTMLButtonElement>("[data-grid-replace-current]")!.click();
+    expect(bar.replaceAll).toHaveBeenCalledOnce();
+    expect(bar.replaceCurrent).toHaveBeenCalledOnce();
+    await nextTick();
+  });
+
+  it("disables replacement for readonly/busy results and does not expose it in search-only hosts", () => {
+    const readonly = mountBar({ replaceAvailable: false });
+    const button = readonly.root.querySelector<HTMLButtonElement>("[data-grid-replace-all]")!;
+    expect(button.disabled).toBe(true);
+    button.click();
+    expect(readonly.replaceAll).not.toHaveBeenCalled();
+    const busy = mountBar({ replaceBusy: true });
+    expect(busy.root.querySelector<HTMLButtonElement>("[data-grid-replace-all]")!.disabled).toBe(true);
+    const empty = mountBar({ replaceMatchCount: 0, canReplaceCurrent: false });
+    expect(empty.root.querySelector<HTMLButtonElement>("[data-grid-replace-all]")!.disabled).toBe(true);
+    const searchOnly = mountBar({ replaceOpen: false, replaceAvailable: undefined });
+    expect(searchOnly.root.querySelector("[data-grid-replacement-input]")).toBeNull();
+    expect(searchOnly.root.querySelector("[data-grid-replace-toggle]")).toBeNull();
+  });
+});
diff --git a/apps/desktop/src/components/grid/__tests__/DataGridSurfaces.spec.ts b/apps/desktop/src/components/grid/__tests__/DataGridSurfaces.spec.ts
index fdbcff4a78..84405205da 100644
--- a/apps/desktop/src/components/grid/__tests__/DataGridSurfaces.spec.ts
+++ b/apps/desktop/src/components/grid/__tests__/DataGridSurfaces.spec.ts
@@ -20,6 +20,7 @@ vi.mock("@lucide/vue", async () => {
   const icon = createPassthroughStub("Icon", "i");
   return {
     Check: icon,
+    CaseSensitive: icon,
     ChevronDown: icon,
     ChevronUp: icon,
     ChevronLeft: icon,
@@ -225,14 +226,14 @@ describe("DataGridSearchBar", () => {
     dispatch(suggestion, "mouseenter");
     expect(hoverSuggestion).toHaveBeenCalledWith(0);
 
-    const previousButton = findOne(mounted.root, (node) => node.props["aria-label"] === "search.prevMatch");
-    const nextButton = findOne(mounted.root, (node) => node.props["aria-label"] === "search.nextMatch");
+    const previousButton = findOne(mounted.root, (node) => node.props["aria-label"] === "editor.search.prevMatch");
+    const nextButton = findOne(mounted.root, (node) => node.props["aria-label"] === "editor.search.nextMatch");
     expect(dispatch(previousButton, "mousedown").defaultPrevented).toBe(true);
     dispatch(previousButton, "click");
     dispatch(nextButton, "click");
     expect(navigate.mock.calls).toEqual([[-1], [1]]);
 
-    const closeButton = findOne(mounted.root, (node) => node.props["aria-label"] === "search.close");
+    const closeButton = findOne(mounted.root, (node) => node.props["aria-label"] === "editor.search.close");
     dispatch(closeButton, "click");
     expect(close).toHaveBeenCalledOnce();
 
diff --git a/apps/desktop/src/composables/__tests__/useDataGridEditor.spec.ts b/apps/desktop/src/composables/__tests__/useDataGridEditor.spec.ts
index e35ad3b3e1..36b7486034 100644
--- a/apps/desktop/src/composables/__tests__/useDataGridEditor.spec.ts
+++ b/apps/desktop/src/composables/__tests__/useDataGridEditor.spec.ts
@@ -49,6 +49,7 @@ function createEditorWithResult(
   onCellValueChanged?: (rowId: number, columnIndex: number) => void,
   tableColumns?: Array<{ name: string; data_type: string; extra?: string; column_default?: string }>,
   mongoCollectionGrid = false,
+  quickEntry = false,
 ) {
   let editor: ReturnType<typeof useDataGridEditor>;
   const result = ref<{ columns: string[]; rows: CellValue[][] }>({
@@ -77,6 +78,7 @@ function createEditorWithResult(
     onExecuteSql: computed(() => undefined),
     sql: computed(() => undefined),
     searchText: ref(""),
+    dataGridQuickEntryEnabled: computed(() => quickEntry),
     whereFilterInput: ref(""),
     currentWhereInput: computed(() => undefined),
     orderByInput: ref(""),
@@ -136,6 +138,122 @@ function createEditor(...args: Parameters<typeof createEditorWithResult>) {
   return createEditorWithResult(...args).editor;
 }
 
+describe("useDataGridEditor searched replacements", () => {
+  beforeEach(() => {
+    mocks.prepareDataGridSave.mockReset();
+    mocks.executeBatch.mockReset();
+    mocks.getConfig.mockReturnValue(undefined);
+  });
+
+  it("stages one undoable batch, keeps empty strings and preserves prior pending edits", () => {
+    const editor = createEditor(undefined, true, undefined, undefined, [["hit", "keep", "hit"]]);
+    editor.newRows.value = [];
+    editor.applyCellValue(0, 1, "draft");
+    expect(
+      editor.stageCellReplacements([
+        { rowId: 0, col: 0, previousValue: "hit", value: "" },
+        { rowId: 0, col: 2, previousValue: "hit", value: "new" },
+      ]),
+    ).toBe(2);
+    expect(editor.dirtyRows.value.get(0)).toEqual(
+      new Map([
+        [1, "draft"],
+        [0, ""],
+        [2, "new"],
+      ]),
+    );
+    expect(editor.manualSaveRequired.value).toBe(true);
+    editor.undoPendingChange();
+    expect(editor.dirtyRows.value.get(0)).toEqual(new Map([[1, "draft"]]));
+    expect(editor.manualSaveRequired.value).toBe(false);
+    editor.redoPendingChange();
+    expect(editor.dirtyRows.value.get(0)?.get(0)).toBe("");
+    expect(editor.manualSaveRequired.value).toBe(true);
+    expect(mocks.executeBatch).not.toHaveBeenCalled();
+  });
+
+  it("rejects readonly, stale, deleted, non-string and out-of-range targets", () => {
+    const editor = createEditor(
+      ["first", undefined, "last"],
+      true,
+      undefined,
+      [2],
+      [
+        ["hit", "hit", "hit"],
+        [123, null, false],
+      ],
+    );
+    editor.newRows.value = [];
+    editor.deletedRows.value.add(0);
+    const changes = [
+      { rowId: 0, col: 0, previousValue: "hit", value: "x" },
+      { rowId: 1, col: 0, previousValue: "123", value: "x" },
+      { rowId: 9, col: 0, previousValue: "hit", value: "x" },
+    ];
+    expect(editor.stageCellReplacements(changes)).toBe(0);
+    editor.deletedRows.value.clear();
+    expect(
+      editor.stageCellReplacements([
+        { rowId: 0, col: 0, previousValue: "stale", value: "x" },
+        { rowId: 0, col: 1, previousValue: "hit", value: "x" },
+        { rowId: 0, col: 2, previousValue: "hit", value: "x" },
+        { rowId: -1, col: 0, previousValue: "hit", value: "x" },
+      ]),
+    ).toBe(0);
+    expect(editor.dirtyRows.value.size).toBe(0);
+    expect(editor.manualSaveRequired.value).toBe(false);
+  });
+
+  it("blocks later quick-entry autosaves until explicit save or discard", async () => {
+    const editor = createEditor(undefined, true, undefined, undefined, [["hit", "keep", "hit"]], undefined, undefined, false, true);
+    editor.newRows.value = [];
+    editor.stageCellReplacements([{ rowId: 0, col: 0, previousValue: "hit", value: "new" }]);
+    editor.applyCellValue(0, 1, "later edit");
+    await editor.saveChanges({ autoSave: true });
+    expect(mocks.prepareDataGridSave).not.toHaveBeenCalled();
+    expect(mocks.executeBatch).not.toHaveBeenCalled();
+    expect(editor.hasPendingChanges.value).toBe(true);
+    mocks.prepareDataGridSave.mockResolvedValue({ statements: ["UPDATE people SET first='new',hidden='later edit' WHERE last='hit'"], rollbackStatements: [] });
+    mocks.executeBatch.mockResolvedValue([]);
+    await editor.saveChanges();
+    expect(mocks.executeBatch).toHaveBeenCalledOnce();
+    expect(editor.manualSaveRequired.value).toBe(false);
+    editor.stageCellReplacements([{ rowId: 0, col: 0, previousValue: "new", value: "other" }]);
+    editor.discardChanges();
+    expect(editor.manualSaveRequired.value).toBe(false);
+  });
+
+  it("persists the manual-save interlock across a tab remount", async () => {
+    const key = "replace-remount";
+    const rows: CellValue[][] = [["hit", "keep", "hit"]];
+    const first = createEditor(undefined, true, key, undefined, rows);
+    first.newRows.value = [];
+    first.stageCellReplacements([{ rowId: 0, col: 0, previousValue: "hit", value: "new" }]);
+    first.savePendingSnapshot();
+    const second = createEditor(undefined, true, key, undefined, rows);
+    second.newRows.value = [];
+    expect(second.manualSaveRequired.value).toBe(true);
+    await second.saveChanges({ autoSave: true });
+    expect(mocks.executeBatch).not.toHaveBeenCalled();
+    second.discardChanges();
+    clearDataGridPendingSnapshot(key);
+  });
+
+  it("clears the manual-save interlock when replacement restores all original values", () => {
+    const editor = createEditor(undefined, true, undefined, undefined, [["hit", "keep", "hit"]]);
+    editor.newRows.value = [];
+    editor.stageCellReplacements([{ rowId: 0, col: 0, previousValue: "hit", value: "new" }]);
+    editor.stageCellReplacements([{ rowId: 0, col: 0, previousValue: "new", value: "hit" }]);
+    expect(editor.hasPendingChanges.value).toBe(false);
+    expect(editor.manualSaveRequired.value).toBe(false);
+    editor.undoPendingChange();
+    expect(editor.dirtyRows.value.get(0)?.get(0)).toBe("new");
+    expect(editor.manualSaveRequired.value).toBe(true);
+    editor.redoPendingChange();
+    expect(editor.manualSaveRequired.value).toBe(false);
+  });
+});
+
 function beforeTabSwitchEvent(fromTabId: string, tabId = "next-tab") {
   return new CustomEvent("dbx:before-tab-switch", { detail: { tabId, fromTabId } });
 }
diff --git a/apps/desktop/src/composables/__tests__/useDataGridSearch.spec.ts b/apps/desktop/src/composables/__tests__/useDataGridSearch.spec.ts
index ab23cd8a93..6340c63dc1 100644
--- a/apps/desktop/src/composables/__tests__/useDataGridSearch.spec.ts
+++ b/apps/desktop/src/composables/__tests__/useDataGridSearch.spec.ts
@@ -15,6 +15,49 @@ async function flushSearchDebounce() {
 }
 
 describe("useDataGridSearch", () => {
+  it("supports literal case-sensitive replacement searches without column-name matches", async () => {
+    vi.useFakeTimers();
+    const sensitive = ref(true);
+    const search = useDataGridSearch({
+      columns: ["HIT", "value"],
+      rows: [
+        ["HIT", "hit hit"],
+        [" hit ", "hit"],
+      ],
+      getCellSearchText: (row, col) => row[col].toLowerCase(),
+      getCellRawSearchText: (row, col) => row[col],
+      caseSensitive: sensitive,
+      literalQuery: true,
+      includeColumnMatches: false,
+      isCellSearchable: (_row, col) => col === 0,
+    });
+    search.searchText.value = "HIT";
+    await flushSearchDebounce();
+    expect(search.matches.value).toEqual([{ kind: "cell", displayRow: 0, col: 0 }]);
+    sensitive.value = false;
+    await flushSearchDebounce();
+    expect(search.matchCount.value).toBe(2);
+    search.searchText.value = " hit ";
+    await flushSearchDebounce();
+    expect(search.matches.value).toEqual([{ kind: "cell", displayRow: 1, col: 0 }]);
+  });
+  it("degrades case-sensitive matching to case-insensitive without a raw-text provider", async () => {
+    vi.useFakeTimers();
+    const search = useDataGridSearch({
+      columns: ["name"],
+      rows: [["Alice"]],
+      // No getCellRawSearchText: only the lowercase cache exists, so an
+      // uppercase query must still match instead of never finding the cell.
+      getCellSearchText: (row, col) => row[col].toLowerCase(),
+      caseSensitive: true,
+      literalQuery: false,
+      includeColumnMatches: false,
+    });
+    search.searchText.value = "ALICE";
+    await flushSearchDebounce();
+    expect(search.matchCount.value).toBe(1);
+  });
+
   it("debounces matching across columns and cells", async () => {
     vi.useFakeTimers();
     // getCellSearchText 契约：返回小写文本（调用方负责缓存小写副本）
diff --git a/apps/desktop/src/composables/useDataGridEditor.ts b/apps/desktop/src/composables/useDataGridEditor.ts
index eae5eb1088..88b745e999 100644
--- a/apps/desktop/src/composables/useDataGridEditor.ts
+++ b/apps/desktop/src/composables/useDataGridEditor.ts
@@ -136,6 +136,7 @@ export interface UseDataGridEditorOptions {
 }
 
 interface PendingChangesSnapshot {
+  manualSaveRequired?: boolean;
   newRows: CellValue[][];
   newRowMeta: GridNewRowMeta[];
   quickEntryDraftRow?: CellValue[];
@@ -173,7 +174,7 @@ interface QueuedAutoSaveChange {
   value: CellValue;
 }
 
-type PendingChangesHistorySnapshot = Pick<PendingChangesSnapshot, "newRows" | "newRowMeta" | "quickEntryDraftRow" | "dirtyRows" | "deletedRows" | "transactionActive">;
+type PendingChangesHistorySnapshot = Pick<PendingChangesSnapshot, "newRows" | "newRowMeta" | "quickEntryDraftRow" | "dirtyRows" | "deletedRows" | "transactionActive" | "manualSaveRequired">;
 
 const pendingChangesCache = new Map<string, PendingChangesSnapshot>();
 const closingPendingSnapshotTabs = new Set<string>();
@@ -312,6 +313,7 @@ export function useDataGridEditor(options: UseDataGridEditorOptions) {
   const undoStack = ref<PendingChangesHistorySnapshot[]>([]);
   const redoStack = ref<PendingChangesHistorySnapshot[]>([]);
   const pendingChangesVersion = ref(0);
+  const manualSaveRequired = ref(false);
   let restoredEditingCell = false;
   let restoredTransactionActive = false;
   let suppressNextBlurCommit = false;
@@ -336,6 +338,7 @@ export function useDataGridEditor(options: UseDataGridEditorOptions) {
       quickEntryDraftRow.value = cached.quickEntryDraftRow ? [...cached.quickEntryDraftRow] : [];
       dirtyRows.value = cached.dirtyRows;
       deletedRows.value = cached.deletedRows;
+      manualSaveRequired.value = cached.manualSaveRequired === true;
       editingCell.value = cached.editingCell ?? null;
       editValue.value = cached.editValue ?? "";
       restoredEditingCell = !!cached.editingCell;
@@ -439,6 +442,7 @@ export function useDataGridEditor(options: UseDataGridEditorOptions) {
 
   function pendingChangesSnapshot(): PendingChangesHistorySnapshot {
     return {
+      manualSaveRequired: manualSaveRequired.value,
       newRows: newRows.value.map((row) => [...row]),
       newRowMeta: cloneNewRowMeta(newRowMeta.value),
       quickEntryDraftRow: quickEntryDraftRow.value.length > 0 ? [...quickEntryDraftRow.value] : undefined,
@@ -455,6 +459,7 @@ export function useDataGridEditor(options: UseDataGridEditorOptions) {
     restoreNewRowMeta(snapshot.newRowMeta ?? []);
     quickEntryDraftRow.value = snapshot.quickEntryDraftRow ? [...snapshot.quickEntryDraftRow] : emptyDraftRow();
     dirtyRows.value = restoredDirtyRows;
+    manualSaveRequired.value = snapshot.manualSaveRequired === true;
     deletedRows.value = new Set(snapshot.deletedRows);
     transactionActive.value = snapshot.transactionActive === true && useTransaction.value === true;
     queuedAutoSaveChanges.clear();
@@ -957,8 +962,12 @@ export function useDataGridEditor(options: UseDataGridEditorOptions) {
   }
 
   function applyCellValue(rowId: number, col: number, value: string | null, options: ApplyCellValueOptions = {}) {
-    if (!canEditColumn(col)) return;
     const item = getRowItem(rowId);
+    applyCellValueToItem(item, rowId, col, value, options);
+  }
+
+  function applyCellValueToItem(item: RowItem | undefined, rowId: number, col: number, value: string | null, options: ApplyCellValueOptions = {}) {
+    if (!canEditColumn(col)) return;
     if (!item || item.isDeleted) return;
 
     if (item.isDraft) {
@@ -1056,6 +1065,34 @@ export function useDataGridEditor(options: UseDataGridEditorOptions) {
     onCellValueChanged?.(rowId, col);
   }
 
+  function stageCellReplacements(changes: readonly import("@/lib/dataGrid/dataGridReplace").DataGridCellReplacement[]): number {
+    if (!editable.value || !canEditExistingRows.value || isSaving.value || isConditionalUpdateActive.value) return 0;
+    let changed = 0;
+    beginBatch();
+    try {
+      for (const change of changes) {
+        const { rowId, col, previousValue, value } = change;
+        if (!Number.isInteger(rowId) || rowId < 0 || !Number.isInteger(col) || col < 0 || col >= result.value.columns.length || !canEditColumn(col) || deletedRows.value.has(rowId)) continue;
+        const row = result.value.rows[rowId];
+        if (!row) continue;
+        const data = rowDataWithChanges(row, rowId);
+        if (typeof data[col] !== "string" || data[col] !== previousValue || value === previousValue) continue;
+        const item: RowItem = { id: rowId, sourceIndex: rowId, data, isNew: false, isDeleted: false, isDirtyCol: [], status: "clean" };
+        applyCellValueToItem(item, rowId, col, value, { preserveEmptyString: true });
+        const currentValue = rowDataWithChanges(row, rowId)[col];
+        if (currentValue !== previousValue) {
+          changed++;
+          // Set after the first undo snapshot, so undo restores the prior policy.
+          manualSaveRequired.value = true;
+        }
+      }
+      return changed;
+    } finally {
+      commitBatch();
+      if (!hasPendingChanges.value) manualSaveRequired.value = false;
+    }
+  }
+
   function restoreCellValue(rowId: number, col: number) {
     if (!canEditColumn(col)) return;
     const item = getRowItem(rowId);
@@ -1501,6 +1538,7 @@ export function useDataGridEditor(options: UseDataGridEditorOptions) {
 
   async function finishSaveChanges(savedSnapshot?: PendingSaveSnapshot) {
     isSaving.value = false;
+    if (!hasPendingChanges.value) manualSaveRequired.value = false;
     if (pendingAutoSaveRequested && dataGridQuickEntryEnabled.value) {
       applyQueuedAutoSaveChanges(savedSnapshot);
     } else {
@@ -1811,6 +1849,7 @@ export function useDataGridEditor(options: UseDataGridEditorOptions) {
   }
 
   async function saveChanges(saveOptions: SaveChangesOptions = {}) {
+    if (saveOptions.autoSave && manualSaveRequired.value) return;
     if (isSaving.value) {
       if (saveOptions.autoSave) pendingAutoSaveRequested = true;
       return;
@@ -2016,6 +2055,7 @@ export function useDataGridEditor(options: UseDataGridEditorOptions) {
 
   function discardChanges() {
     if (isConditionalUpdateActive.value) return;
+    manualSaveRequired.value = false;
     dirtyRows.value = new Map();
     newRows.value = [];
     newRowMeta.value = [];
@@ -2060,6 +2100,7 @@ export function useDataGridEditor(options: UseDataGridEditorOptions) {
       return;
     }
     pendingChangesCache.set(k, {
+      manualSaveRequired: manualSaveRequired.value,
       newRows: newRows.value.map((r) => [...r]),
       newRowMeta: cloneNewRowMeta(newRowMeta.value),
       quickEntryDraftRow: quickEntryDraftRowSnapshot,
@@ -2168,6 +2209,8 @@ export function useDataGridEditor(options: UseDataGridEditorOptions) {
     newRowCount,
     deletedRowCount,
     pendingChangesVersion,
+    manualSaveRequired,
+    stageCellReplacements,
     pendingChangeCount,
     hasPendingChanges,
     transactionActive,
diff --git a/apps/desktop/src/composables/useDataGridSearch.ts b/apps/desktop/src/composables/useDataGridSearch.ts
index 5960558341..41176cd23d 100644
--- a/apps/desktop/src/composables/useDataGridSearch.ts
+++ b/apps/desktop/src/composables/useDataGridSearch.ts
@@ -1,6 +1,7 @@
 import { computed, getCurrentScope, nextTick, onScopeDispose, ref, toValue, watch, type MaybeRefOrGetter } from "vue";
 import { dataGridSearchMatchKey } from "@/lib/dataGrid/canvasDataGridRenderer";
 import { loadDataGridSearchState, saveDataGridSearchState } from "@/lib/dataGrid/dataGridSearchStatePersistence";
+import { dataGridReplacementPattern } from "@/lib/dataGrid/dataGridReplace";
 
 export type DataGridSearchMatch = {
   kind: "cell" | "column";
@@ -17,6 +18,11 @@ export type UseDataGridSearchOptions<Row> = {
   /** 必须返回小写文本（查询词已小写）。调用方可据此缓存小写副本，
    * 避免每次按键对全部单元格重新分配 toLowerCase 字符串。 */
   getCellSearchText: (row: Row, columnIndex: number) => string;
+  getCellRawSearchText?: (row: Row, columnIndex: number) => string;
+  caseSensitive?: MaybeRefOrGetter<boolean>;
+  literalQuery?: MaybeRefOrGetter<boolean>;
+  includeColumnMatches?: MaybeRefOrGetter<boolean>;
+  isCellSearchable?: (row: Row, columnIndex: number) => boolean;
   debounceMs?: number;
   onNavigate?: (match: DataGridSearchMatch) => void;
   /** 按标签页键控的持久化键；不传则该宿主不参与搜索状态保留。 */
@@ -38,6 +44,11 @@ export function useDataGridSearch<Row>(options: UseDataGridSearchOptions<Row>) {
   const suggestionIndex = ref(-1);
   let searchTimer: ReturnType<typeof setTimeout> | undefined;
 
+  // Case-sensitive matching needs the raw (non-lowercased) cell text. Without a
+  // raw-text provider only the lowercase cache exists, so degrade to
+  // case-insensitive instead of never matching uppercase input.
+  const effectiveCaseSensitive = computed(() => !!toValue(options.caseSensitive) && (!!toValue(options.literalQuery) || !!options.getCellRawSearchText));
+
   const matchState = computed(() => {
     const query = deferredSearchText.value;
     const keys: number[] = [];
@@ -50,12 +61,23 @@ export function useDataGridSearch<Row>(options: UseDataGridSearchOptions<Row>) {
       matchSet.add(key);
     };
     const columns = toValue(options.columns);
-    columns.forEach((column, col) => {
-      if (column.toLowerCase().includes(query)) addMatch(-1, col);
-    });
+    const sensitive = effectiveCaseSensitive.value;
+    const pattern = toValue(options.literalQuery) ? dataGridReplacementPattern(query, sensitive) : undefined;
+    const includes = (value: string) => {
+      if (!pattern) return (sensitive ? value : value.toLowerCase()).includes(query);
+      pattern.lastIndex = 0;
+      return pattern.test(value);
+    };
+    if (toValue(options.includeColumnMatches) !== false) {
+      columns.forEach((column, col) => {
+        if (includes(column)) addMatch(-1, col);
+      });
+    }
     toValue(options.rows).forEach((row, displayRow) => {
       columns.forEach((_, col) => {
-        if (options.getCellSearchText(row, col).includes(query)) addMatch(displayRow, col);
+        if (options.isCellSearchable && !options.isCellSearchable(row, col)) return;
+        const text = (pattern || sensitive) && options.getCellRawSearchText ? options.getCellRawSearchText(row, col) : options.getCellSearchText(row, col);
+        if (includes(text)) addMatch(displayRow, col);
       });
     });
     return { keys, matchSet };
@@ -81,9 +103,10 @@ export function useDataGridSearch<Row>(options: UseDataGridSearchOptions<Row>) {
   // watcher flush and self-invalidates if the user types during the restore window.
   let restoreToken: { searchText: string; matchIndex: number } | null = null;
 
-  watch(searchText, (value) => {
+  watch([searchText, () => toValue(options.caseSensitive), () => toValue(options.literalQuery)], ([value]) => {
     clearTimer();
-    const query = value.trim().toLowerCase();
+    const text = toValue(options.literalQuery) ? value : value.trim();
+    const query = toValue(options.literalQuery) || effectiveCaseSensitive.value ? text : text.toLowerCase();
     const restoring = restoreToken !== null && restoreToken.searchText === value;
     if (!query) deferredSearchText.value = "";
     // Restoring is not typing: resolve the query now so the row set (and, in
@@ -102,6 +125,12 @@ export function useDataGridSearch<Row>(options: UseDataGridSearchOptions<Row>) {
     // are writing keeps the normal debounce, index reset and auto-navigate.
     restoreToken = null;
 
+    if (toValue(options.literalQuery)) {
+      suggestions.value = [];
+      suggestionIndex.value = -1;
+      return;
+    }
+
     const lastToken = value.trim().split(SEARCH_TOKEN_SEPARATOR).pop()?.toLowerCase() ?? "";
     suggestions.value = lastToken
       ? toValue(options.suggestionColumns ?? options.columns)
diff --git a/apps/desktop/src/i18n/locales/en.ts b/apps/desktop/src/i18n/locales/en.ts
index 1689086a6a..07bc93f491 100644
--- a/apps/desktop/src/i18n/locales/en.ts
+++ b/apps/desktop/src/i18n/locales/en.ts
@@ -2168,6 +2168,15 @@ export default {
     batchAppendPasteTargetNotEmpty: "The selected new row already contains data.",
     batchAppendPasteEmpty: "The clipboard does not contain rows to add.",
     batchAppendPasteReadonlyColumn: "The pasted data includes a column that cannot be edited.",
+    replaceText: "Replace with",
+    replaceCurrentCell: "Replace all matching text in the current cell",
+    replaceScope: "Replacement scope",
+    replaceLoadedResults: "Loaded results",
+    replaceCurrentColumn: "Current column",
+    replaceSelectedCells: "Selected cells",
+    replaceChooseColumn: "Choose a column",
+    replaceMatchedCells: "{count} matching cells",
+    replaceStagedCells: "Replaced {count} cells; pending save",
     search: "Search...",
     searchTruncatedValuesHint: "Some long text/JSON values are truncated for display; the search only covers loaded cell text and may miss matches.",
     searchOrWhere: "Search, or enter a WHERE clause...",
diff --git a/apps/desktop/src/i18n/locales/es.ts b/apps/desktop/src/i18n/locales/es.ts
index 8c5ccbdb8e..431ec59d3d 100644
--- a/apps/desktop/src/i18n/locales/es.ts
+++ b/apps/desktop/src/i18n/locales/es.ts
@@ -2357,6 +2357,15 @@ export default withEnglishFallback({
     batchAppendPasteTargetNotEmpty: "La nueva fila seleccionada ya contiene datos.",
     batchAppendPasteEmpty: "No hay filas nuevas en el portapapeles.",
     batchAppendPasteReadonlyColumn: "Los datos pegados contienen columnas no editables.",
+    replaceText: "Reemplazar por",
+    replaceCurrentCell: "Reemplazar todo el texto coincidente en la celda actual",
+    replaceScope: "Ámbito de reemplazo",
+    replaceLoadedResults: "Resultados cargados",
+    replaceCurrentColumn: "Columna actual",
+    replaceSelectedCells: "Celdas seleccionadas",
+    replaceChooseColumn: "Elegir una columna",
+    replaceMatchedCells: "{count} celdas coincidentes",
+    replaceStagedCells: "Se reemplazaron {count} celdas; pendiente de guardar",
     xlsxHeaderTitle: "Formato de encabezado",
     xlsxExportTitle: "Opciones de exportacion",
     xlsxHeaderPrompt: "Seleccione el formato de encabezado al exportar a Excel:",
diff --git a/apps/desktop/src/i18n/locales/it.ts b/apps/desktop/src/i18n/locales/it.ts
index f225ad1a6d..85e46bc0ef 100644
--- a/apps/desktop/src/i18n/locales/it.ts
+++ b/apps/desktop/src/i18n/locales/it.ts
@@ -2355,6 +2355,15 @@ export default withEnglishFallback({
     batchAppendPasteTargetNotEmpty: "La riga nuova selezionata contiene già dati.",
     batchAppendPasteEmpty: "Negli appunti non ci sono righe da aggiungere.",
     batchAppendPasteReadonlyColumn: "I dati incollati contengono colonne non modificabili.",
+    replaceText: "Sostituisci con",
+    replaceCurrentCell: "Sostituisci tutto il testo corrispondente nella cella corrente",
+    replaceScope: "Ambito di sostituzione",
+    replaceLoadedResults: "Risultati caricati",
+    replaceCurrentColumn: "Colonna corrente",
+    replaceSelectedCells: "Celle selezionate",
+    replaceChooseColumn: "Scegli una colonna",
+    replaceMatchedCells: "{count} celle corrispondenti",
+    replaceStagedCells: "Sostituite {count} celle; salvataggio in sospeso",
     xlsxHeaderTitle: "Formato intestazione",
     xlsxExportTitle: "Opzioni di esportazione",
     xlsxHeaderPrompt: "Seleziona il formato dell'intestazione da utilizzare per l'esportazione in Excel:",
diff --git a/apps/desktop/src/i18n/locales/ja.ts b/apps/desktop/src/i18n/locales/ja.ts
index e470002df7..20c7302eff 100644
--- a/apps/desktop/src/i18n/locales/ja.ts
+++ b/apps/desktop/src/i18n/locales/ja.ts
@@ -2377,6 +2377,15 @@ export default withEnglishFallback({
     batchAppendPasteTargetNotEmpty: "選択した新規行には既にデータが含まれています。",
     batchAppendPasteEmpty: "クリップボードに追加可能な行がありません。",
     batchAppendPasteReadonlyColumn: "貼り付けたデータに編集不可能な列が含まれています。",
+    replaceText: "置換後の文字列",
+    replaceCurrentCell: "現在のセル内の一致するテキストをすべて置換",
+    replaceScope: "置換範囲",
+    replaceLoadedResults: "読み込み済みの結果",
+    replaceCurrentColumn: "現在の列",
+    replaceSelectedCells: "選択したセル",
+    replaceChooseColumn: "列を選択",
+    replaceMatchedCells: "一致するセル: {count} 件",
+    replaceStagedCells: "{count} 個のセルを置換しました。保存待ちです",
     xlsxHeaderTitle: "ヘッダー形式",
     xlsxExportTitle: "エクスポートオプション",
     xlsxHeaderPrompt: "Excel エクスポート時に使用するヘッダー形式を選択してください：",
diff --git a/apps/desktop/src/i18n/locales/ko.ts b/apps/desktop/src/i18n/locales/ko.ts
index 999f3c8e9b..3c649e0e05 100644
--- a/apps/desktop/src/i18n/locales/ko.ts
+++ b/apps/desktop/src/i18n/locales/ko.ts
@@ -2005,6 +2005,15 @@ export default withEnglishFallback({
     hideSelectedColumns: "선택한 컬럼 숨기기 ({count})",
     showAllColumnsMenu: "모든 컬럼 표시",
     pasted: "붙여넣었습니다!",
+    replaceText: "바꿀 내용",
+    replaceCurrentCell: "현재 셀에서 일치하는 텍스트 모두 바꾸기",
+    replaceScope: "바꾸기 범위",
+    replaceLoadedResults: "로드된 결과",
+    replaceCurrentColumn: "현재 컬럼",
+    replaceSelectedCells: "선택한 셀",
+    replaceChooseColumn: "컬럼 선택",
+    replaceMatchedCells: "일치하는 셀 {count}개",
+    replaceStagedCells: "셀 {count}개를 바꿨습니다. 저장 대기 중",
     search: "검색...",
     searchTruncatedValuesHint: "일부 긴 텍스트/JSON 값은 표시를 위해 잘렸습니다. 검색은 로드된 표시 내용만 대상으로 하며 SQL 쿼리보다 일치 수가 적을 수 있습니다.",
     searchOrWhere: "검색 또는 WHERE 절 입력...",
diff --git a/apps/desktop/src/i18n/locales/pt-BR.ts b/apps/desktop/src/i18n/locales/pt-BR.ts
index 2cfad0e247..4a2e6e22af 100644
--- a/apps/desktop/src/i18n/locales/pt-BR.ts
+++ b/apps/desktop/src/i18n/locales/pt-BR.ts
@@ -2357,6 +2357,15 @@ export default withEnglishFallback({
     batchAppendPasteTargetNotEmpty: "A nova linha selecionada já contém dados.",
     batchAppendPasteEmpty: "Não há linhas para adicionar na área de transferência.",
     batchAppendPasteReadonlyColumn: "Os dados colados contêm colunas não editáveis.",
+    replaceText: "Substituir por",
+    replaceCurrentCell: "Substituir todo o texto correspondente na célula atual",
+    replaceScope: "Escopo da substituição",
+    replaceLoadedResults: "Resultados carregados",
+    replaceCurrentColumn: "Coluna atual",
+    replaceSelectedCells: "Células selecionadas",
+    replaceChooseColumn: "Escolher uma coluna",
+    replaceMatchedCells: "{count} células correspondentes",
+    replaceStagedCells: "{count} células substituídas; aguardando salvamento",
     xlsxHeaderTitle: "Formato do cabeçalho",
     xlsxExportTitle: "Opcoes de exportacao",
     xlsxHeaderPrompt: "Selecione o formato do cabeçalho a ser usado ao exportar Excel:",
diff --git a/apps/desktop/src/i18n/locales/zh-CN.ts b/apps/desktop/src/i18n/locales/zh-CN.ts
index c2f42e62d5..bbca64acc6 100644
--- a/apps/desktop/src/i18n/locales/zh-CN.ts
+++ b/apps/desktop/src/i18n/locales/zh-CN.ts
@@ -2083,6 +2083,15 @@ export default withEnglishFallback({
     batchAppendPasteTargetNotEmpty: "选中的新增行已包含数据。",
     batchAppendPasteEmpty: "剪贴板中没有可新增的行。",
     batchAppendPasteReadonlyColumn: "粘贴的数据包含不可编辑的列。",
+    replaceText: "替换为",
+    replaceCurrentCell: "替换当前命中单元格中的全部匹配文字",
+    replaceScope: "替换范围",
+    replaceLoadedResults: "已加载结果",
+    replaceCurrentColumn: "当前列",
+    replaceSelectedCells: "选中单元格",
+    replaceChooseColumn: "选择列",
+    replaceMatchedCells: "命中 {count} 个单元格",
+    replaceStagedCells: "已替换 {count} 个单元格，待保存",
     search: "搜索...",
     searchTruncatedValuesHint: "部分长文本/JSON 值已截断显示，搜索仅覆盖已加载的显示内容，匹配数可能少于 SQL 查询。",
     searchOrWhere: "搜索，或输入 WHERE 条件...",
diff --git a/apps/desktop/src/i18n/locales/zh-TW.ts b/apps/desktop/src/i18n/locales/zh-TW.ts
index 18d55ddcad..0afab4c566 100644
--- a/apps/desktop/src/i18n/locales/zh-TW.ts
+++ b/apps/desktop/src/i18n/locales/zh-TW.ts
@@ -2360,6 +2360,15 @@ export default withEnglishFallback({
     batchAppendPasteTargetNotEmpty: "選取的新增行已包含資料。",
     batchAppendPasteEmpty: "剪貼簿中沒有可新增的行。",
     batchAppendPasteReadonlyColumn: "貼上的資料包含不可編輯的列。",
+    replaceText: "取代為",
+    replaceCurrentCell: "取代目前符合儲存格中的所有相符文字",
+    replaceScope: "取代範圍",
+    replaceLoadedResults: "已載入結果",
+    replaceCurrentColumn: "目前欄位",
+    replaceSelectedCells: "所選儲存格",
+    replaceChooseColumn: "選擇欄位",
+    replaceMatchedCells: "符合 {count} 個儲存格",
+    replaceStagedCells: "已取代 {count} 個儲存格，待儲存",
     xlsxHeaderTitle: "表頭格式",
     xlsxExportTitle: "匯出選項",
     xlsxHeaderPrompt: "請選擇匯出 Excel 時使用的表頭格式：",
diff --git a/apps/desktop/src/lib/__tests__/dataGrid/dataGridReplace.spec.ts b/apps/desktop/src/lib/__tests__/dataGrid/dataGridReplace.spec.ts
new file mode 100644
index 0000000000..c4a3a57158
--- /dev/null
+++ b/apps/desktop/src/lib/__tests__/dataGrid/dataGridReplace.spec.ts
@@ -0,0 +1,45 @@
+import { describe, expect, it } from "vitest";
+import { findDataGridReplacementMatches, replaceDataGridText } from "@/lib/dataGrid/dataGridReplace";
+
+describe("data grid searched text replacement", () => {
+  it("replaces repeated JSON fragments without changing the rest of the value", () => {
+    const value = '[{"backend":"svc.test-test:80","path":"/api/**"},{"backend":"svc2.test-test:81"}]';
+    expect(replaceDataGridText(value, "test-test", "prod", false)).toBe('[{"backend":"svc.prod:80","path":"/api/**"},{"backend":"svc2.prod:81"}]');
+  });
+
+  it("treats both search and replacement as literals", () => {
+    expect(replaceDataGridText("a.* a.*", ".*", "$&$1", false)).toBe("a$&$1 a$&$1");
+    expect(replaceDataGridText("one\\two", "\\", "$'", false)).toBe("one$'two");
+  });
+
+  it("supports case sensitivity, whitespace searches and empty replacement strings", () => {
+    expect(replaceDataGridText("TEST test", "test", "x", true)).toBe("TEST x");
+    expect(replaceDataGridText("TEST test", "test", "x", false)).toBe("x x");
+    expect(replaceDataGridText("  a  ", "  ", "", false)).toBe("a");
+    expect(replaceDataGridText("hit", "hit", "", false)).toBe("");
+    expect(replaceDataGridText("hit", "", "x", false)).toBe("hit");
+  });
+
+  const rows = [
+    { rowId: 7, data: ["hit", null, 123, true, "HIT"] },
+    { rowId: 2, data: ["hit", "hit", "none", false, "hit"] },
+  ];
+
+  it("matches only string cells in loaded rows using stable source IDs", () => {
+    expect(findDataGridReplacementMatches({ rows, search: "hit" })).toEqual([
+      { rowId: 7, col: 0, value: "hit" },
+      { rowId: 7, col: 4, value: "HIT" },
+      { rowId: 2, col: 0, value: "hit" },
+      { rowId: 2, col: 1, value: "hit" },
+      { rowId: 2, col: 4, value: "hit" },
+    ]);
+  });
+
+  it("applies column, selection, case, readonly and truncation restrictions before matching", () => {
+    expect(findDataGridReplacementMatches({ rows, search: "hit", caseSensitive: true, column: 4 })).toEqual([{ rowId: 2, col: 4, value: "hit" }]);
+    expect(findDataGridReplacementMatches({ rows, search: "hit", includesCell: (rowId, col) => rowId === 2 && col === 1 })).toEqual([{ rowId: 2, col: 1, value: "hit" }]);
+    expect(findDataGridReplacementMatches({ rows, search: "hit", canReplaceCell: (rowId, col) => rowId !== 7 && col !== 1, isTruncated: (rowId, col) => rowId === 2 && col === 4 })).toEqual([{ rowId: 2, col: 0, value: "hit" }]);
+    expect(findDataGridReplacementMatches({ rows, search: "hit", includesCell: () => false })).toEqual([]);
+    expect(findDataGridReplacementMatches({ rows, search: "" })).toEqual([]);
+  });
+});
diff --git a/apps/desktop/src/lib/dataGrid/dataGridReplace.ts b/apps/desktop/src/lib/dataGrid/dataGridReplace.ts
new file mode 100644
index 0000000000..9b36799bb4
--- /dev/null
+++ b/apps/desktop/src/lib/dataGrid/dataGridReplace.ts
@@ -0,0 +1,42 @@
+import type { CellValue } from "@/lib/dataGrid/cellValue";
+
+export type DataGridReplacementMatch = { rowId: number; col: number; value: string };
+export type DataGridCellReplacement = DataGridReplacementMatch & { previousValue: string };
+export type DataGridReplaceScope = "loaded" | "column" | "selection";
+
+type ReplacementMatchOptions = {
+  rows: readonly { rowId: number; data: readonly CellValue[] }[];
+  search: string;
+  caseSensitive?: boolean;
+  column?: number;
+  includesCell?: (rowId: number, col: number) => boolean;
+  canReplaceCell?: (rowId: number, col: number) => boolean;
+  isTruncated?: (rowId: number, col: number) => boolean;
+};
+
+export function dataGridReplacementPattern(search: string, caseSensitive: boolean): RegExp {
+  return new RegExp(search.replace(/[.*+?^${}()|[\]\\]/g, "\\$&"), caseSensitive ? "gu" : "giu");
+}
+
+export function replaceDataGridText(value: string, search: string, replacement: string, caseSensitive: boolean): string {
+  if (!search) return value;
+  // A callback keeps $&, $1 and other replacement tokens literal.
+  return value.replace(dataGridReplacementPattern(search, caseSensitive), () => replacement);
+}
+
+export function findDataGridReplacementMatches(options: ReplacementMatchOptions): DataGridReplacementMatch[] {
+  if (!options.search) return [];
+  const pattern = dataGridReplacementPattern(options.search, options.caseSensitive ?? false);
+  const matches: DataGridReplacementMatch[] = [];
+  for (const row of options.rows) {
+    row.data.forEach((value, col) => {
+      if (typeof value !== "string" || (options.column !== undefined && col !== options.column)) return;
+      if (options.includesCell && !options.includesCell(row.rowId, col)) return;
+      if (options.canReplaceCell && !options.canReplaceCell(row.rowId, col)) return;
+      if (options.isTruncated?.(row.rowId, col)) return;
+      pattern.lastIndex = 0;
+      if (pattern.test(value)) matches.push({ rowId: row.rowId, col, value });
+    });
+  }
+  return matches;
+}
diff --git a/docs/screenshots/issue-9372-grid-find-replace.png b/docs/screenshots/issue-9372-grid-find-replace.png
new file mode 100644
index 0000000000..3b16f62efc
Binary files /dev/null and b/docs/screenshots/issue-9372-grid-find-replace.png differ