diff --git a/apps/desktop/src/components/layout/ContentArea.vue b/apps/desktop/src/components/layout/ContentArea.vue
index 87acac1b74..3c0085b129 100644
--- a/apps/desktop/src/components/layout/ContentArea.vue
+++ b/apps/desktop/src/components/layout/ContentArea.vue
@@ -2346,7 +2346,7 @@ defineExpose({
     <!-- Redis mode: key browser -->
     <template v-else-if="activeTab.mode === 'redis'">
       <div class="flex-1 min-h-0">
-        <RedisKeyBrowser ref="redisKeyBrowserRef" :key="`${activeTab.id}:${activeTab.connectionId}:${activeTab.database}`" :connection-id="activeTab.connectionId" :db="Number(activeTab.database)" :block-dangerous-redis-commands="props.blockDangerousRedisCommands" />
+        <RedisKeyBrowser ref="redisKeyBrowserRef" :key="`${activeTab.id}:${activeTab.connectionId}:${activeTab.database}`" :connection-id="activeTab.connectionId" :db="Number(activeTab.database)" :block-dangerous-redis-commands="props.blockDangerousRedisCommands" :state-key="activeTab.id" />
       </div>
     </template>
 
diff --git a/apps/desktop/src/components/redis/RedisKeyBrowser.tabState.spec.ts b/apps/desktop/src/components/redis/RedisKeyBrowser.tabState.spec.ts
new file mode 100644
index 0000000000..dc789a91b3
--- /dev/null
+++ b/apps/desktop/src/components/redis/RedisKeyBrowser.tabState.spec.ts
@@ -0,0 +1,361 @@
+// @vitest-environment happy-dom
+
+import { createApp, nextTick } from "vue";
+import { createI18n } from "vue-i18n";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { clearRedisKeyBrowserState, saveRedisKeyBrowserState } from "@/lib/tabs/redisKeyBrowserStateCache";
+
+const mocks = vi.hoisted(() => ({
+  redisScanKeysBatch: vi.fn(),
+  redisGetValue: vi.fn(),
+  redisSetString: vi.fn(),
+  redisJsonSet: vi.fn(),
+  redisHashSet: vi.fn(),
+  redisListPush: vi.fn(),
+  redisSetAdd: vi.fn(),
+  redisZadd: vi.fn(),
+  redisStreamAdd: vi.fn(),
+  redisSetTtl: vi.fn(),
+  redisSetExpireAt: vi.fn(),
+  redisCheckJsonModule: vi.fn(),
+  redisDeleteKey: vi.fn(),
+  redisDeleteKeys: vi.fn(),
+  redisExecuteCommand: vi.fn(),
+  saveHistory: vi.fn(),
+  toast: vi.fn(),
+  updateRedisDbKeyStats: vi.fn(),
+  listRedisCompletionCommandDocs: vi.fn(),
+  listRedisCompletionKeys: vi.fn(),
+  redisScanPageSize: 100,
+  infiniteScroll: false,
+  queryResultMaxRowsEnabled: true,
+  queryResultMaxRows: 5000,
+}));
+
+vi.mock("@/lib/backend/api", () => ({
+  redisScanKeysBatch: mocks.redisScanKeysBatch,
+  redisGetValue: mocks.redisGetValue,
+  redisSetString: mocks.redisSetString,
+  redisJsonSet: mocks.redisJsonSet,
+  redisHashSet: mocks.redisHashSet,
+  redisListPush: mocks.redisListPush,
+  redisSetAdd: mocks.redisSetAdd,
+  redisZadd: mocks.redisZadd,
+  redisStreamAdd: mocks.redisStreamAdd,
+  redisSetTtl: mocks.redisSetTtl,
+  redisSetExpireAt: mocks.redisSetExpireAt,
+  redisCheckJsonModule: mocks.redisCheckJsonModule,
+  redisDeleteKey: mocks.redisDeleteKey,
+  redisDeleteKeys: mocks.redisDeleteKeys,
+  redisExecuteCommand: mocks.redisExecuteCommand,
+  saveHistory: mocks.saveHistory,
+}));
+
+vi.mock("@/stores/connectionStore", () => ({
+  useConnectionStore: () => ({
+    ensureConnected: vi.fn().mockResolvedValue(undefined),
+    getConfig: () => ({ name: "Redis", redis_key_separator: ":", redis_scan_page_size: mocks.redisScanPageSize }),
+    updateRedisDbKeyStats: mocks.updateRedisDbKeyStats,
+    listRedisCompletionCommandDocs: mocks.listRedisCompletionCommandDocs,
+    listRedisCompletionKeys: mocks.listRedisCompletionKeys,
+    invalidateCompletionCache: vi.fn(),
+    refreshRedisDbKeyCounts: vi.fn(),
+  }),
+}));
+
+vi.mock("@/stores/settingsStore", () => ({
+  useSettingsStore: () => ({
+    editorSettings: {
+      infiniteScroll: mocks.infiniteScroll,
+      queryResultMaxRowsEnabled: mocks.queryResultMaxRowsEnabled,
+      queryResultMaxRows: mocks.queryResultMaxRows,
+    },
+  }),
+}));
+
+vi.mock("@/composables/useEditorFontFamilyStyle", () => ({
+  useEditorFontFamilyStyle: () => ({}),
+}));
+
+vi.mock("@/composables/useToast", () => ({
+  useToast: () => ({ toast: mocks.toast }),
+}));
+
+vi.mock("@/components/ui/button", async () => {
+  const { defineComponent, h } = await import("vue");
+  return {
+    Button: defineComponent({
+      inheritAttrs: false,
+      props: { disabled: Boolean },
+      setup(props, { attrs, slots }) {
+        return () => h("button", { ...attrs, disabled: props.disabled }, slots.default?.());
+      },
+    }),
+  };
+});
+
+vi.mock("@/components/ui/input", async () => {
+  const { defineComponent, h, mergeProps } = await import("vue");
+  return {
+    Input: defineComponent({
+      inheritAttrs: false,
+      props: { modelValue: String, disabled: Boolean },
+      emits: ["update:modelValue"],
+      setup(props, { attrs, emit }) {
+        return () =>
+          h(
+            "input",
+            mergeProps(attrs, {
+              value: props.modelValue ?? "",
+              disabled: props.disabled,
+              onInput: (event: Event) => emit("update:modelValue", (event.target as HTMLInputElement).value),
+            }),
+          );
+      },
+    }),
+  };
+});
+
+vi.mock("@/components/ui/badge", async () => {
+  const { defineComponent, h } = await import("vue");
+  return {
+    Badge: defineComponent({
+      setup:
+        (_, { attrs, slots }) =>
+        () =>
+          h("span", attrs, slots.default?.()),
+    }),
+  };
+});
+
+vi.mock("@/components/ui/dialog", async () => {
+  const { defineComponent, h } = await import("vue");
+  const slotContainer = defineComponent({
+    setup:
+      (_, { attrs, slots }) =>
+      () =>
+        h("div", attrs, slots.default?.()),
+  });
+  return {
+    Dialog: defineComponent({
+      props: { open: Boolean },
+      setup(props, { slots }) {
+        return () => (props.open ? h("div", { "data-test-dialog": "" }, slots.default?.()) : null);
+      },
+    }),
+    DialogContent: slotContainer,
+    DialogFooter: slotContainer,
+    DialogHeader: slotContainer,
+    DialogTitle: slotContainer,
+  };
+});
+
+vi.mock("@/components/ui/select", async () => {
+  const { defineComponent, h } = await import("vue");
+  const slotContainer = defineComponent({
+    setup:
+      (_, { attrs, slots }) =>
+      () =>
+        h("div", attrs, slots.default?.()),
+  });
+  return {
+    Select: slotContainer,
+    SelectContent: slotContainer,
+    SelectItem: defineComponent({
+      props: { value: String },
+      setup(props, { slots }) {
+        return () => h("button", { type: "button", "data-test-select-value": props.value }, slots.default?.());
+      },
+    }),
+    SelectTrigger: slotContainer,
+    SelectValue: slotContainer,
+  };
+});
+
+vi.mock("@/components/ui/option-help-panel", async () => {
+  const { defineComponent, h } = await import("vue");
+  return { OptionHelpPanel: defineComponent({ setup: () => () => h("div") }) };
+});
+
+vi.mock("@/components/ui/tabs", async () => {
+  const { defineComponent, h } = await import("vue");
+  const slotContainer = defineComponent({
+    setup:
+      (_, { attrs, slots }) =>
+      () =>
+        h("div", attrs, slots.default?.()),
+  });
+  return { Tabs: slotContainer, TabsContent: slotContainer, TabsList: slotContainer, TabsTrigger: slotContainer };
+});
+
+vi.mock("@/components/ui/switch", async () => {
+  const { defineComponent, h } = await import("vue");
+  return { Switch: defineComponent({ setup: () => () => h("button", { type: "button" }) }) };
+});
+
+vi.mock("@/components/ui/date-time-picker/DateTimePicker.vue", async () => {
+  const { defineComponent, h } = await import("vue");
+  return { default: defineComponent({ setup: () => () => h("div") }) };
+});
+
+vi.mock("@/components/ui/CustomContextMenu.vue", async () => {
+  const { defineComponent, h } = await import("vue");
+  return {
+    default: defineComponent({
+      setup(_, { slots }) {
+        return () => h("div", slots.default?.({ onContextMenu: () => undefined }));
+      },
+    }),
+  };
+});
+
+vi.mock("@/components/editor/DangerConfirmDialog.vue", async () => {
+  const { defineComponent, h } = await import("vue");
+  return { default: defineComponent({ props: { open: Boolean }, setup: () => () => h("div") }) };
+});
+
+vi.mock("./RedisValueViewer.vue", async () => {
+  const { defineComponent, h } = await import("vue");
+  return { default: defineComponent({ setup: () => () => h("div") }) };
+});
+
+vi.mock("./RedisPubSubPanel.vue", async () => {
+  const { defineComponent, h } = await import("vue");
+  return { default: defineComponent({ setup: () => () => h("div") }) };
+});
+
+vi.mock("./RedisSlowlogPanel.vue", async () => {
+  const { defineComponent, h } = await import("vue");
+  return { default: defineComponent({ setup: () => () => h("div") }) };
+});
+
+vi.mock("vue-virtual-scroller", async () => {
+  const { defineComponent, h } = await import("vue");
+  return {
+    RecycleScroller: defineComponent({
+      inheritAttrs: false,
+      props: { items: { type: Array, default: () => [] } },
+      setup(props, { attrs, slots }) {
+        return () =>
+          h(
+            "div",
+            attrs,
+            props.items.slice(0, 20).map((item) => slots.default?.({ item })),
+          );
+      },
+    }),
+  };
+});
+
+vi.mock("splitpanes", async () => {
+  const { defineComponent, h } = await import("vue");
+  const slotContainer = defineComponent({
+    setup:
+      (_, { attrs, slots }) =>
+      () =>
+        h("div", attrs, slots.default?.()),
+  });
+  return { Splitpanes: slotContainer, Pane: slotContainer };
+});
+
+import RedisKeyBrowser from "./RedisKeyBrowser.vue";
+
+const mountedApps: Array<{ unmount: () => void; host: HTMLElement }> = [];
+
+async function settle() {
+  for (let index = 0; index < 4; index++) {
+    await nextTick();
+    await Promise.resolve();
+  }
+}
+
+function mountBrowser(stateKey?: string) {
+  const host = document.createElement("div");
+  document.body.append(host);
+  const app = createApp(RedisKeyBrowser, {
+    connectionId: "connection",
+    db: 0,
+    blockDangerousRedisCommands: false,
+    stateKey,
+  });
+  app.use(createI18n({ legacy: false, locale: "en", messages: { en: {} }, missingWarn: false, fallbackWarn: false }));
+  app.mount(host);
+  mountedApps.push({ unmount: () => app.unmount(), host });
+  return host;
+}
+
+function unmountBrowser(host: HTMLElement) {
+  const index = mountedApps.findIndex((mounted) => mounted.host === host);
+  expect(index).toBeGreaterThanOrEqual(0);
+  const [mounted] = mountedApps.splice(index, 1);
+  mounted!.unmount();
+  host.remove();
+}
+
+beforeEach(() => {
+  vi.clearAllMocks();
+  mocks.redisScanKeysBatch.mockResolvedValue({ cursor: 0, keys: [], total_keys: 0 });
+  clearRedisKeyBrowserState("tab-redis-filter");
+  clearRedisKeyBrowserState("tab-a");
+  clearRedisKeyBrowserState("tab-b");
+});
+
+afterEach(() => {
+  while (mountedApps.length > 0) {
+    const mounted = mountedApps.pop()!;
+    mounted.unmount();
+    mounted.host.remove();
+  }
+});
+
+describe("RedisKeyBrowser tab state (tab switch persistence)", () => {
+  it("restores search conditions after unmount/remount", async () => {
+    const host = mountBrowser("tab-redis-filter");
+    await settle();
+    expect(mocks.redisScanKeysBatch).toHaveBeenCalledTimes(1);
+    expect(mocks.redisScanKeysBatch.mock.calls[0]![3]).toBe("*");
+
+    const input = host.querySelector("[data-redis-search-input]") as HTMLInputElement;
+    input.value = "monitor:job:*";
+    input.dispatchEvent(new Event("input", { bubbles: true }));
+    await settle();
+    input.dispatchEvent(new KeyboardEvent("keydown", { key: "Enter", bubbles: true }));
+    await settle();
+
+    const afterSearchCalls = mocks.redisScanKeysBatch.mock.calls;
+    expect(afterSearchCalls[afterSearchCalls.length - 1]![3]).toBe("monitor:job:*");
+
+    // Switch away (unmount) and back (remount) — what ContentArea does per tab.
+    unmountBrowser(host);
+    await settle();
+    const restoredHost = mountBrowser("tab-redis-filter");
+    await settle();
+
+    const restoredInput = restoredHost.querySelector("[data-redis-search-input]") as HTMLInputElement;
+    expect(restoredInput.value).toBe("monitor:job:*");
+    const restoredCalls = mocks.redisScanKeysBatch.mock.calls;
+    expect(restoredCalls[restoredCalls.length - 1]![3]).toBe("monitor:job:*");
+  });
+
+  it("keeps tab states isolated from each other", async () => {
+    saveRedisKeyBrowserState("tab-a", {
+      searchPattern: "alpha:*",
+      searchMode: "key",
+      fuzzyKeySearch: false,
+      noExpiryOnly: false,
+    });
+
+    const hostB = mountBrowser("tab-b");
+    await settle();
+    expect((hostB.querySelector("[data-redis-search-input]") as HTMLInputElement).value).toBe("");
+    const tabBCalls = mocks.redisScanKeysBatch.mock.calls;
+    expect(tabBCalls[tabBCalls.length - 1]![3]).toBe("*");
+
+    unmountBrowser(hostB);
+    const hostA = mountBrowser("tab-a");
+    await settle();
+    expect((hostA.querySelector("[data-redis-search-input]") as HTMLInputElement).value).toBe("alpha:*");
+    const tabACalls = mocks.redisScanKeysBatch.mock.calls;
+    expect(tabACalls[tabACalls.length - 1]![3]).toBe("alpha:*");
+  });
+});
diff --git a/apps/desktop/src/components/redis/RedisKeyBrowser.vue b/apps/desktop/src/components/redis/RedisKeyBrowser.vue
index 1cbc1c5b20..a5316cd906 100644
--- a/apps/desktop/src/components/redis/RedisKeyBrowser.vue
+++ b/apps/desktop/src/components/redis/RedisKeyBrowser.vue
@@ -69,6 +69,7 @@ import { shouldLoadMoreRedisKeys } from "@/lib/redis/redisKeyInfiniteScroll";
 import { formatTtl } from "@/lib/common/ttlFormat";
 import { computeTtlCountdownValue } from "@/lib/redis/redisAutoRefresh";
 import { createRedisKeyViewYield } from "@/lib/redis/redisKeyViewScheduler";
+import { restoreRedisKeyBrowserState, saveRedisKeyBrowserState } from "@/lib/tabs/redisKeyBrowserStateCache";
 
 const { t, locale } = useI18n();
 const { toast } = useToast();
@@ -121,8 +122,14 @@ const props = defineProps<{
   connectionId: string;
   db: number;
   blockDangerousRedisCommands: boolean;
+  /** Tab id; search conditions are cached per tab and restored on remount. */
+  stateKey?: string;
 }>();
 
+// This component is keyed by tab in ContentArea and unmounted on every tab
+// switch; without restoring from the per-tab cache, coming back to the tab
+// would silently drop the user's search pattern / mode / local filters.
+const restoredRedisKeyBrowserState = props.stateKey ? restoreRedisKeyBrowserState(props.stateKey) : undefined;
 const redisExpiryTransport = {
   setTtl: api.redisSetTtl,
   setExpireAt: api.redisSetExpireAt,
@@ -145,9 +152,9 @@ let redisKeyScrollRevision = 0;
 let latestRedisKeyScrollAnchor: RedisKeyViewportAnchor | null = null;
 const valueViewerRef = ref<{ focusSearch: () => boolean } | null>(null);
 const commandTerminalRef = ref<HTMLElement>();
-const searchPattern = ref("");
-const searchMode = ref<RedisSearchMode>("key");
-const fuzzyKeySearch = ref(false);
+const searchPattern = ref(restoredRedisKeyBrowserState?.searchPattern ?? "");
+const searchMode = ref<RedisSearchMode>(restoredRedisKeyBrowserState?.searchMode ?? "key");
+const fuzzyKeySearch = ref(restoredRedisKeyBrowserState?.fuzzyKeySearch ?? false);
 const keyTemplateMenuOpen = ref(false);
 const keyTemplateSelectedIndex = ref(0);
 const keyTemplateListboxId = `redis-key-template-suggestions-${uuid()}`;
@@ -312,7 +319,19 @@ watch(redisKeySeparator, () => {
 const lastTotalKeys = ref(0);
 // “仅看无过期”过滤开关：开启后只保留 TTL 为 -1（永不过期）的已加载 key。
 // TTL 为 -2 的行（fetch-all 链路未查询 TTL）不会出现在过滤结果里。
-const noExpiryOnly = ref(false);
+const noExpiryOnly = ref(restoredRedisKeyBrowserState?.noExpiryOnly ?? false);
+
+function persistRedisKeyBrowserState() {
+  if (!props.stateKey) return;
+  saveRedisKeyBrowserState(props.stateKey, {
+    searchPattern: searchPattern.value,
+    searchMode: searchMode.value,
+    fuzzyKeySearch: fuzzyKeySearch.value,
+    noExpiryOnly: noExpiryOnly.value,
+  });
+}
+
+watch([searchPattern, searchMode, fuzzyKeySearch, noExpiryOnly], persistRedisKeyBrowserState);
 const fetchAllFilteredKeyCount = ref<number | null>(null);
 // 过滤后的平铺 key 列表：未开启过滤时与 flatKeys 完全一致，避免额外开销
 const filteredFlatKeys = computed(() => {
diff --git a/apps/desktop/src/lib/__tests__/tabs/redisKeyBrowserStateCache.spec.ts b/apps/desktop/src/lib/__tests__/tabs/redisKeyBrowserStateCache.spec.ts
new file mode 100644
index 0000000000..c247bdb203
--- /dev/null
+++ b/apps/desktop/src/lib/__tests__/tabs/redisKeyBrowserStateCache.spec.ts
@@ -0,0 +1,58 @@
+import { describe, expect, it } from "vitest";
+import { clearRedisKeyBrowserState, restoreRedisKeyBrowserState, saveRedisKeyBrowserState, type RedisKeyBrowserStateSnapshot } from "@/lib/tabs/redisKeyBrowserStateCache";
+
+function snapshot(suffix: number): RedisKeyBrowserStateSnapshot {
+  return {
+    searchPattern: `user:${suffix}*`,
+    searchMode: suffix % 2 === 0 ? "key" : "value",
+    fuzzyKeySearch: suffix % 3 === 0,
+    noExpiryOnly: suffix % 2 === 1,
+  };
+}
+
+describe("redisKeyBrowserStateCache", () => {
+  it("round-trips a snapshot for the same key", () => {
+    saveRedisKeyBrowserState("round-trip", snapshot(3));
+
+    expect(restoreRedisKeyBrowserState("round-trip")).toEqual(snapshot(3));
+  });
+
+  it("returns undefined for an unknown key", () => {
+    expect(restoreRedisKeyBrowserState("missing")).toBeUndefined();
+  });
+
+  it("keeps the most recent write for a key", () => {
+    saveRedisKeyBrowserState("overwrite", snapshot(1));
+    saveRedisKeyBrowserState("overwrite", snapshot(2));
+
+    expect(restoreRedisKeyBrowserState("overwrite")).toEqual(snapshot(2));
+  });
+
+  it("evicts the oldest entry beyond 32 keys", () => {
+    for (let index = 0; index < 33; index += 1) {
+      saveRedisKeyBrowserState(`evict-${index}`, snapshot(index));
+    }
+
+    expect(restoreRedisKeyBrowserState("evict-0")).toBeUndefined();
+    expect(restoreRedisKeyBrowserState("evict-1")).toBeDefined();
+    expect(restoreRedisKeyBrowserState("evict-32")).toBeDefined();
+  });
+
+  it("treats a restore as recency so a touched entry survives eviction", () => {
+    for (let index = 0; index < 32; index += 1) {
+      saveRedisKeyBrowserState(`touch-${index}`, snapshot(index));
+    }
+    expect(restoreRedisKeyBrowserState("touch-0")).toEqual(snapshot(0));
+    saveRedisKeyBrowserState("touch-new", snapshot(99));
+
+    expect(restoreRedisKeyBrowserState("touch-0")).toBeDefined();
+    expect(restoreRedisKeyBrowserState("touch-1")).toBeUndefined();
+  });
+
+  it("clears a key on demand", () => {
+    saveRedisKeyBrowserState("clear-me", snapshot(4));
+    clearRedisKeyBrowserState("clear-me");
+
+    expect(restoreRedisKeyBrowserState("clear-me")).toBeUndefined();
+  });
+});
diff --git a/apps/desktop/src/lib/tabs/redisKeyBrowserStateCache.ts b/apps/desktop/src/lib/tabs/redisKeyBrowserStateCache.ts
new file mode 100644
index 0000000000..90c548fa44
--- /dev/null
+++ b/apps/desktop/src/lib/tabs/redisKeyBrowserStateCache.ts
@@ -0,0 +1,43 @@
+export type RedisKeyBrowserSearchMode = "key" | "value" | "all";
+
+export interface RedisKeyBrowserStateSnapshot {
+  /** Key / value / all search input text. */
+  searchPattern: string;
+  /** Which Redis search mode the toolbar is in. */
+  searchMode: RedisKeyBrowserSearchMode;
+  /** Fuzzy MATCH wrapping for key-mode searches. */
+  fuzzyKeySearch: boolean;
+  /** Local filter: only show keys with TTL = -1 in the loaded result set. */
+  noExpiryOnly: boolean;
+}
+
+// ContentArea renders only the active tab, so RedisKeyBrowser is unmounted on
+// every tab switch and remounted when the user comes back. Search conditions
+// survive that round trip through this session-scoped cache keyed by tab id —
+// the same role documentBrowserStateCache plays for Mongo/ES collection tabs.
+// The bound keeps state for long tab sessions from accumulating forever.
+const MAX_ENTRIES = 32;
+const cache = new Map<string, RedisKeyBrowserStateSnapshot>();
+
+export function restoreRedisKeyBrowserState(stateKey: string): RedisKeyBrowserStateSnapshot | undefined {
+  const snapshot = cache.get(stateKey);
+  if (!snapshot) return undefined;
+  // Refresh LRU recency.
+  cache.delete(stateKey);
+  cache.set(stateKey, snapshot);
+  return snapshot;
+}
+
+export function saveRedisKeyBrowserState(stateKey: string, snapshot: RedisKeyBrowserStateSnapshot): void {
+  cache.delete(stateKey);
+  cache.set(stateKey, snapshot);
+  while (cache.size > MAX_ENTRIES) {
+    const oldest = cache.keys().next().value;
+    if (oldest === undefined) break;
+    cache.delete(oldest);
+  }
+}
+
+export function clearRedisKeyBrowserState(stateKey: string): void {
+  cache.delete(stateKey);
+}