diff --git a/apps/desktop/src/App.vue b/apps/desktop/src/App.vue
index bd05087207..737fdd1c02 100644
--- a/apps/desktop/src/App.vue
+++ b/apps/desktop/src/App.vue
@@ -3600,6 +3600,7 @@ onUnmounted(() => {
                     "
                     @object-schema-change="(tabId: string, schema: string | undefined) => queryStore.updateSchema(tabId, schema)"
                     @object-browser-viewport-change="(tabId: string, viewport: any) => queryStore.updateObjectBrowserViewport(tabId, viewport)"
+                    @object-browser-search-change="(tabId: string, query: string) => queryStore.updateObjectBrowserSearch(tabId, query)"
                     @structure-editor-saved="
                       (tabId: string, commentChanged: boolean) => {
                         const tab = queryStore.tabs.find((candidate) => candidate.id === tabId);
diff --git a/apps/desktop/src/components/layout/ContentArea.vue b/apps/desktop/src/components/layout/ContentArea.vue
index 70d583317e..e2dc033f8b 100644
--- a/apps/desktop/src/components/layout/ContentArea.vue
+++ b/apps/desktop/src/components/layout/ContentArea.vue
@@ -2502,10 +2502,12 @@ defineExpose({
           :initial-event-open-request-id="activeTab.objectBrowser?.eventOpenRequestId"
           :initial-event-create-request-id="activeTab.objectBrowser?.eventCreateRequestId"
           :initial-object-filter="activeTab.objectBrowser?.initialObjectFilter"
+          :initial-search-query="activeTab.objectBrowser?.searchQuery"
           :viewport="activeTab.objectBrowser?.viewport"
           @open-table="emit('openObjectTable', activeTab.id, $event)"
           @schema-change="emit('objectSchemaChange', activeTab.id, $event)"
           @viewport-change="emit('objectBrowserViewportChange', activeTab.id, $event)"
+          @search-change="emit('objectBrowserSearchChange', activeTab.id, $event)"
         />
       </div>
     </template>
diff --git a/apps/desktop/src/components/layout/querySurfaces.ts b/apps/desktop/src/components/layout/querySurfaces.ts
index aa260991fd..70b3bf31cb 100644
--- a/apps/desktop/src/components/layout/querySurfaces.ts
+++ b/apps/desktop/src/components/layout/querySurfaces.ts
@@ -88,6 +88,7 @@ export interface ContentAreaSurfaceEmits {
   openObjectTable: [tabId: string, target: { tableName: string; schema?: string; tableType?: string; catalog?: string }];
   objectSchemaChange: [tabId: string, schema: string | undefined];
   objectBrowserViewportChange: [tabId: string, viewport: ObjectBrowserViewport];
+  objectBrowserSearchChange: [tabId: string, query: string];
   structureEditorSaved: [tabId: string, commentChanged: boolean];
   structureEditorClose: [tabId: string];
   previewStatement: [tabId: string, range: StatementRange | null];
diff --git a/apps/desktop/src/components/objects/ObjectBrowser.vue b/apps/desktop/src/components/objects/ObjectBrowser.vue
index 24e8c039b5..6d95cde1d7 100644
--- a/apps/desktop/src/components/objects/ObjectBrowser.vue
+++ b/apps/desktop/src/components/objects/ObjectBrowser.vue
@@ -176,6 +176,7 @@ const props = defineProps<{
   /** 显式"新建事件"请求号：每次菜单点击递增，用于打开/重新进入 CREATE 编辑器 */
   initialEventCreateRequestId?: number;
   initialObjectFilter?: "tables" | "events";
+  initialSearchQuery?: string;
   viewport?: ObjectBrowserViewport;
 }>();
 
@@ -183,6 +184,7 @@ const emit = defineEmits<{
   openTable: [target: { tableName: string; schema?: string; tableType?: string; catalog?: string }];
   schemaChange: [schema: string | undefined];
   viewportChange: [viewport: ObjectBrowserViewport];
+  searchChange: [query: string];
 }>();
 
 const { t } = useI18n();
@@ -200,7 +202,7 @@ const schemas = ref<string[]>([]);
 const selectedSchema = ref<string | undefined>(props.schema);
 const rows = ref<ObjectBrowserRow[]>([]);
 const rootRef = ref<HTMLElement>();
-const search = ref("");
+const search = ref(props.initialSearchQuery ?? "");
 const objectFilter = ref<ObjectFilter>("all");
 const userHasSelectedFilter = ref(false);
 const sortKey = ref<ObjectBrowserSortKey>("name");
@@ -534,7 +536,10 @@ watch([sortKey, sortDirection], () => scrollObjectsToTop());
 
 // Also jump to the top when the search query or object-type filter changes —
 // filtered results bear no relation to the previous scroll position.
-watch(search, () => scrollObjectsToTop());
+watch(search, (value) => {
+  scrollObjectsToTop();
+  emit("searchChange", value);
+});
 watch(objectFilter, () => {
   if (preserveObjectFilterScrollOnce) {
     preserveObjectFilterScrollOnce = false;
diff --git a/apps/desktop/src/components/objects/__tests__/ObjectBrowserSearchPersistence.spec.ts b/apps/desktop/src/components/objects/__tests__/ObjectBrowserSearchPersistence.spec.ts
new file mode 100644
index 0000000000..170fa413e7
--- /dev/null
+++ b/apps/desktop/src/components/objects/__tests__/ObjectBrowserSearchPersistence.spec.ts
@@ -0,0 +1,48 @@
+import { readFileSync } from "node:fs";
+import { describe, expect, it } from "vitest";
+
+// Issue #8236: switching away from the "Browse Objects" tab and back reset
+// the keyword search filter, because ObjectBrowser has no <KeepAlive> around
+// it (ContentArea renders it inside a plain v-else-if chain) and its `search`
+// ref was always seeded to "". The fix threads the value through
+// activeTab.objectBrowser.searchQuery, mirroring the existing viewport
+// persistence path.
+
+const objectBrowserSource = readFileSync(new URL("../ObjectBrowser.vue", import.meta.url), "utf8");
+const contentAreaSource = readFileSync(new URL("../../layout/ContentArea.vue", import.meta.url), "utf8");
+const querySurfacesSource = readFileSync(new URL("../../layout/querySurfaces.ts", import.meta.url), "utf8");
+const contentSurfaceEventsSource = readFileSync(new URL("../../../lib/tabs/contentSurfaceEvents.ts", import.meta.url), "utf8");
+const queryStoreSource = readFileSync(new URL("../../../stores/queryStore.ts", import.meta.url), "utf8");
+const databaseTypesSource = readFileSync(new URL("../../../types/database.ts", import.meta.url), "utf8");
+
+describe("ObjectBrowser keyword search survives tab switches", () => {
+  it("seeds the local search ref from a persisted initial value instead of always starting empty", () => {
+    expect(objectBrowserSource).toContain("initialSearchQuery?: string;");
+    expect(objectBrowserSource).toContain('const search = ref(props.initialSearchQuery ?? "");');
+  });
+
+  it("emits searchChange whenever the keyword changes, so the parent can persist it", () => {
+    expect(objectBrowserSource).toContain("searchChange: [query: string];");
+    expect(objectBrowserSource).toMatch(/watch\(search, \(value\) => \{\s*scrollObjectsToTop\(\);\s*emit\("searchChange", value\);\s*\}\);/);
+  });
+
+  it("ContentArea binds the persisted search query as a prop and forwards the change event", () => {
+    expect(contentAreaSource).toContain(':initial-search-query="activeTab.objectBrowser?.searchQuery"');
+    expect(contentAreaSource).toContain("@search-change=\"emit('objectBrowserSearchChange', activeTab.id, $event)\"");
+  });
+
+  it("the surface event contract and forwarding list both know about objectBrowserSearchChange", () => {
+    expect(querySurfacesSource).toContain("objectBrowserSearchChange: [tabId: string, query: string];");
+    expect(contentSurfaceEventsSource).toContain('"objectBrowserSearchChange",');
+  });
+
+  it("queryStore persists the search query onto the tab's objectBrowser state", () => {
+    expect(queryStoreSource).toContain("function updateObjectBrowserSearch(id: string, query: string)");
+    expect(queryStoreSource).toContain("tab.objectBrowser = { ...tab.objectBrowser, searchQuery: query };");
+    expect(queryStoreSource).toContain("updateObjectBrowserSearch,");
+  });
+
+  it("the tab type declares searchQuery on objectBrowser state", () => {
+    expect(databaseTypesSource).toMatch(/objectBrowser\?:\s*\{[^}]*searchQuery\?:\s*string;/s);
+  });
+});
diff --git a/apps/desktop/src/lib/tabs/contentSurfaceEvents.ts b/apps/desktop/src/lib/tabs/contentSurfaceEvents.ts
index cb7272a430..a8e47693d6 100644
--- a/apps/desktop/src/lib/tabs/contentSurfaceEvents.ts
+++ b/apps/desktop/src/lib/tabs/contentSurfaceEvents.ts
@@ -34,6 +34,7 @@ export const contentSurfaceEventNames = [
   "openObjectTable",
   "objectSchemaChange",
   "objectBrowserViewportChange",
+  "objectBrowserSearchChange",
   "structureEditorSaved",
   "structureEditorClose",
   "previewStatement",
diff --git a/apps/desktop/src/stores/__tests__/queryStore.database-open.spec.ts b/apps/desktop/src/stores/__tests__/queryStore.database-open.spec.ts
index 259715863f..7e16b8bb27 100644
--- a/apps/desktop/src/stores/__tests__/queryStore.database-open.spec.ts
+++ b/apps/desktop/src/stores/__tests__/queryStore.database-open.spec.ts
@@ -80,19 +80,28 @@ describe("queryStore database open state", () => {
     expect(store.tabs.filter((tab) => tab.mode === "dolt-version-control")).toHaveLength(2);
   });
 
-  it("keeps object browser viewport per tab and clears it on schema change", async () => {
+  it("keeps object browser search and viewport per tab", async () => {
     const { useQueryStore } = await import("@/stores/queryStore");
     const store = useQueryStore();
 
     const tabId = store.openObjectBrowser("pg-1", "app", "public");
+    store.updateObjectBrowserSearch(tabId, "orders");
     store.updateObjectBrowserViewport(tabId, { scrollTop: 340, viewMode: "list" });
 
     const tab = store.tabs.find((item) => item.id === tabId);
+    expect(tab?.objectBrowser?.searchQuery).toBe("orders");
     expect(tab?.objectBrowser?.viewport).toEqual({ scrollTop: 340, viewMode: "list" });
 
+    const otherTabId = store.createTab("pg-1", "app", "query");
+    store.switchTab(otherTabId);
+    store.switchTab(tabId);
+    expect(store.tabs.find((item) => item.id === tabId)?.objectBrowser?.searchQuery).toBe("orders");
+
     store.updateSchema(tabId, "archive");
 
     expect(tab?.objectBrowser?.schema).toBe("archive");
+    // The keyword intentionally survives a schema switch: the mounted browser keeps its local search too.
+    expect(tab?.objectBrowser?.searchQuery).toBe("orders");
     expect(tab?.objectBrowser?.viewport).toBeUndefined();
   });
 
diff --git a/apps/desktop/src/stores/queryStore.ts b/apps/desktop/src/stores/queryStore.ts
index 8d2bd48f0a..d3c00829c7 100644
--- a/apps/desktop/src/stores/queryStore.ts
+++ b/apps/desktop/src/stores/queryStore.ts
@@ -4076,6 +4076,13 @@ export const useQueryStore = defineStore("query", () => {
     tab.objectBrowser = { ...tab.objectBrowser, viewport };
   }
 
+  function updateObjectBrowserSearch(id: string, query: string) {
+    const tab = tabs.value.find((t) => t.id === id);
+    if (!tab || tab.mode !== "objects") return;
+    if (tab.objectBrowser?.searchQuery === query) return;
+    tab.objectBrowser = { ...tab.objectBrowser, searchQuery: query };
+  }
+
   function updateNacosConfigEditorViewport(connectionId: string, namespace: string, viewport: NacosConfigEditorViewport) {
     if (!Number.isFinite(viewport.scrollTop) || !Number.isFinite(viewport.scrollLeft)) return;
     const tab = tabs.value.find((candidate) => candidate.mode === "nacos" && candidate.connectionId === connectionId && (candidate.nacosNamespace || "") === namespace);
@@ -7704,6 +7711,7 @@ export const useQueryStore = defineStore("query", () => {
     updateEditorViewport,
     updateEditorSelection,
     updateObjectBrowserViewport,
+    updateObjectBrowserSearch,
     updateNacosConfigEditorViewport,
     setAutoCommit,
     markManualTransactionDirty,
diff --git a/apps/desktop/src/types/database.ts b/apps/desktop/src/types/database.ts
index f9a62e030d..aad2138371 100644
--- a/apps/desktop/src/types/database.ts
+++ b/apps/desktop/src/types/database.ts
@@ -1291,6 +1291,7 @@ export interface QueryTab {
     /** 显式的"新建事件"请求：单调递增，用于让已复用 tab 也能重复进入 CREATE 编辑器 */
     eventCreateRequestId?: number;
     initialObjectFilter?: "tables" | "events";
+    searchQuery?: string;
     viewport?: ObjectBrowserViewport;
   };
   objectSource?: {