diff --git a/apps/frontend/src/pages/admin/AdminWorkerPlatformPage.tsx b/apps/frontend/src/pages/admin/AdminWorkerPlatformPage.tsx
index b70bc412..e4cdf293 100644
--- a/apps/frontend/src/pages/admin/AdminWorkerPlatformPage.tsx
+++ b/apps/frontend/src/pages/admin/AdminWorkerPlatformPage.tsx
@@ -7,6 +7,10 @@ import PageHeader from '@/components/admin/PageHeader'
 import type { WorkOrder } from '@/types/worker-platform'
 import { fetchAdminWorkerPlatformSummary } from '@/services/admin'
 import { getAdminRole, hasAdminPermission } from '@/utils/admin-auth'
+import {
+  WORKER_PLATFORM_TAB_QUERY_KEYS as TAB_QUERY_KEYS,
+  isWorkerPlatformTab,
+} from '@/utils/admin-worker-platform-tabs'
 import AfterSalesPanel, { type AfterSalesPanelHandle } from './panels/AfterSalesPanel'
 import AnnouncementPanel from './panels/AnnouncementPanel'
 import CancelRequestsPanel from './panels/CancelRequestsPanel'
@@ -28,29 +32,6 @@ type AfterSalesLocationState = {
   createOrder?: WorkOrder
 }
 
-const TAB_QUERY_KEYS: Record<string, string[][]> = {
-  'consignment-inventory': [['admin-consignment-inventories'], ['admin-consignment-stats']],
-  'consignment-submissions': [
-    ['admin-consignment-submissions'],
-    ['admin-consignment-submissions-pending-total'],
-  ],
-  orders: [['admin-work-orders'], ['admin-work-orders-stats']],
-  'cancel-requests': [['admin-work-order-cancel-requests']],
-  'after-sales': [['admin-after-sales-orders'], ['admin-after-sales-stats']],
-  feedbacks: [['admin-feedbacks']],
-  rules: [['admin-product-rules']],
-  'product-match': [['admin-product-match']],
-  categories: [['admin-categories']],
-  workers: [['admin-workers'], ['admin-worker-users']],
-  leaderboard: [['admin-leaderboard']],
-  finance: [['admin-finance-settlements'], ['admin-finance-withdrawals']],
-  levels: [['admin-worker-levels']],
-  notifications: [['admin-notifications']],
-  announcement: [['admin-announcements']],
-  'hall-config': [['admin-hall-config']],
-  'risk-control': [['admin-worker-risk-overview'], ['admin-worker-risk-events']],
-}
-
 export default function AdminWorkerPlatformPage() {
   const queryClient = useQueryClient()
   const [searchParams, setSearchParams] = useSearchParams()
@@ -207,49 +188,13 @@ const ACTIVE_TAB_STORAGE_KEY = 'admin-worker-platform-tab'
 
 function loadActiveTabPreference(): string {
   const saved = localStorage.getItem(ACTIVE_TAB_STORAGE_KEY)
-  return saved === 'orders' ||
-    saved === 'consignment-inventory' ||
-    saved === 'consignment-submissions' ||
-    saved === 'leaderboard' ||
-    saved === 'cancel-requests' ||
-    saved === 'feedbacks' ||
-    saved === 'after-sales' ||
-    saved === 'announcement' ||
-    saved === 'rules' ||
-    saved === 'product-match' ||
-    saved === 'categories' ||
-    saved === 'workers' ||
-    saved === 'finance' ||
-    saved === 'levels' ||
-    saved === 'notifications'
-    ? saved
-    : 'orders'
+  return isWorkerPlatformTab(saved) ? saved : 'orders'
 }
 
 function loadActiveTab(tab: string | null): string {
   return isWorkerPlatformTab(tab) ? tab : loadActiveTabPreference()
 }
 
-function isWorkerPlatformTab(tab: string | null): tab is string {
-  return [
-    'orders',
-    'consignment-inventory',
-    'consignment-submissions',
-    'leaderboard',
-    'cancel-requests',
-    'feedbacks',
-    'after-sales',
-    'announcement',
-    'rules',
-    'product-match',
-    'categories',
-    'workers',
-    'finance',
-    'levels',
-    'notifications',
-  ].includes(String(tab || ''))
-}
-
 function SummaryCards() {
   const summaryQuery = useQuery({
     queryKey: ['admin-worker-platform-summary'],
diff --git a/apps/frontend/src/utils/admin-worker-platform-tabs.ts b/apps/frontend/src/utils/admin-worker-platform-tabs.ts
new file mode 100644
index 00000000..544bd0f4
--- /dev/null
+++ b/apps/frontend/src/utils/admin-worker-platform-tabs.ts
@@ -0,0 +1,70 @@
+/**
+ * 接单平台（AdminWorkerPlatformPage）的 tab key 名单与切页缓存刷新映射。
+ *
+ * 抽成独立模块的原因：这些名单原先散落在页面组件里，且**同一份名单写了两遍**
+ * （isWorkerPlatformTab 与 loadActiveTabPreference 各一份）。新增 tab 时漏改的后果
+ * 不是报错、也不是白屏，而是**点了没反应**——changeTab() 会在 isWorkerPlatformTab()
+ * 返回 false 时直接 return，tab 渲染得出来却永远切不过去。
+ *
+ * 因此这里只保留唯一一份 WORKER_PLATFORM_TAB_KEYS，并配套单测守住
+ * 「登记了查询缓存却没登记合法 tab」这类漏改。
+ */
+
+/** 所有可作为 tab 的 key（新增 tab 只改这里）。 */
+export const WORKER_PLATFORM_TAB_KEYS: readonly string[] = [
+  'orders',
+  'consignment-inventory',
+  'consignment-submissions',
+  'leaderboard',
+  'cancel-requests',
+  'feedbacks',
+  'after-sales',
+  'announcement',
+  'rules',
+  'product-match',
+  'categories',
+  'workers',
+  'finance',
+  'levels',
+  'notifications',
+  'risk-control',
+]
+
+/**
+ * 切到某个 tab 时需要失效的 react-query key，用于「切入即为最新状态」。
+ *
+ * 注意：这里的 key 未必都是 tab——例如 `hall-config` 是「杂项配置」tab 内部的一个区块。
+ * 未登记的 tab 切换时不额外失效任何查询（仍会刷新概览）。
+ */
+export const WORKER_PLATFORM_TAB_QUERY_KEYS: Record<string, string[][]> = {
+  'consignment-inventory': [['admin-consignment-inventories'], ['admin-consignment-stats']],
+  'consignment-submissions': [
+    ['admin-consignment-submissions'],
+    ['admin-consignment-submissions-pending-total'],
+  ],
+  orders: [['admin-work-orders'], ['admin-work-orders-stats']],
+  'cancel-requests': [['admin-work-order-cancel-requests']],
+  'after-sales': [['admin-after-sales-orders'], ['admin-after-sales-stats']],
+  feedbacks: [['admin-feedbacks']],
+  rules: [['admin-product-rules']],
+  'product-match': [['admin-product-match']],
+  categories: [['admin-categories']],
+  workers: [['admin-workers'], ['admin-worker-users']],
+  leaderboard: [['admin-leaderboard']],
+  finance: [['admin-finance-settlements'], ['admin-finance-withdrawals']],
+  levels: [['admin-worker-levels']],
+  notifications: [['admin-notifications']],
+  announcement: [['admin-announcements']],
+  'hall-config': [['admin-hall-config']],
+  'risk-control': [['admin-worker-risk-overview'], ['admin-worker-risk-events']],
+}
+
+/**
+ * 只登记了查询缓存、但本身不是 tab 的 key。
+ * 目前只有 hall-config：它是「杂项配置」tab 内部的一个区块。
+ */
+export const WORKER_PLATFORM_NON_TAB_QUERY_KEYS: readonly string[] = ['hall-config']
+
+export function isWorkerPlatformTab(tab: string | null): tab is string {
+  return WORKER_PLATFORM_TAB_KEYS.includes(String(tab || ''))
+}
diff --git a/apps/frontend/tests/admin-worker-platform-tabs.test.ts b/apps/frontend/tests/admin-worker-platform-tabs.test.ts
new file mode 100644
index 00000000..38739609
--- /dev/null
+++ b/apps/frontend/tests/admin-worker-platform-tabs.test.ts
@@ -0,0 +1,46 @@
+import assert from 'node:assert/strict'
+import test from 'node:test'
+
+import {
+  WORKER_PLATFORM_NON_TAB_QUERY_KEYS,
+  WORKER_PLATFORM_TAB_KEYS,
+  WORKER_PLATFORM_TAB_QUERY_KEYS,
+  isWorkerPlatformTab,
+} from '../src/utils/admin-worker-platform-tabs.ts'
+
+/**
+ * 这组用例守住一个「不报错、不白屏，只是点了没反应」的坑：
+ * changeTab() 在 isWorkerPlatformTab() 返回 false 时直接 return，
+ * 于是 tab 渲染得出来却永远切不过去。生产上风控 tab 就这样失效过一次。
+ */
+
+test('风控 tab 必须被 isWorkerPlatformTab 接受（漏登记会导致点击无反应）', () => {
+  assert.equal(isWorkerPlatformTab('risk-control'), true)
+})
+
+test('每个登记了切页缓存的 tab 都必须在合法 tab 名单里', () => {
+  const nonTabs = new Set(WORKER_PLATFORM_NON_TAB_QUERY_KEYS)
+  for (const key of Object.keys(WORKER_PLATFORM_TAB_QUERY_KEYS)) {
+    if (nonTabs.has(key)) continue
+    assert.ok(
+      isWorkerPlatformTab(key),
+      `"${key}" 登记了 WORKER_PLATFORM_TAB_QUERY_KEYS 却不在 WORKER_PLATFORM_TAB_KEYS 中 —— changeTab() 会直接 return，表现为点了没反应`,
+    )
+  }
+})
+
+test('合法 tab 名单无重复项', () => {
+  assert.equal(new Set(WORKER_PLATFORM_TAB_KEYS).size, WORKER_PLATFORM_TAB_KEYS.length)
+})
+
+test('非法 tab key 一律被拒（含 null 与空串）', () => {
+  for (const bad of ['', null, 'nope', 'riskcontrol', 'risk_control', 'hall-config']) {
+    assert.equal(isWorkerPlatformTab(bad), false, `${String(bad)} 不应被当作合法 tab`)
+  }
+})
+
+test('名单里的每个 key 都能被自身校验通过', () => {
+  for (const key of WORKER_PLATFORM_TAB_KEYS) {
+    assert.equal(isWorkerPlatformTab(key), true, `${key} 应可通过校验`)
+  }
+})