diff --git a/frontend/src/components/admin/announcements/AnnouncementReadStatusDialog.vue b/frontend/src/components/admin/announcements/AnnouncementReadStatusDialog.vue
index e7d991a8..a0d9de3c 100644
--- a/frontend/src/components/admin/announcements/AnnouncementReadStatusDialog.vue
+++ b/frontend/src/components/admin/announcements/AnnouncementReadStatusDialog.vue
@@ -69,6 +69,7 @@ import { adminAPI } from '@/api/admin'
 import { formatDateTime } from '@/utils/format'
 import type { AnnouncementUserReadStatus } from '@/types'
 import type { Column } from '@/components/common/types'
+import { getPersistedPageSize } from '@/composables/usePersistedPageSize'
 
 import BaseDialog from '@/components/common/BaseDialog.vue'
 import DataTable from '@/components/common/DataTable.vue'
@@ -92,7 +93,7 @@ const search = ref('')
 
 const pagination = reactive({
   page: 1,
-  page_size: 20,
+  page_size: getPersistedPageSize(),
   total: 0,
   pages: 0
 })
diff --git a/frontend/src/components/common/Pagination.vue b/frontend/src/components/common/Pagination.vue
index 5110c8a3..abb0e566 100644
--- a/frontend/src/components/common/Pagination.vue
+++ b/frontend/src/components/common/Pagination.vue
@@ -122,6 +122,7 @@ import { computed, ref } from 'vue'
 import { useI18n } from 'vue-i18n'
 import Icon from '@/components/icons/Icon.vue'
 import Select from './Select.vue'
+import { setPersistedPageSize } from '@/composables/usePersistedPageSize'
 
 const { t } = useI18n()
 
@@ -216,6 +217,7 @@ const goToPage = (newPage: number) => {
 const handlePageSizeChange = (value: string | number | boolean | null) => {
   if (value === null || typeof value === 'boolean') return
   const newPageSize = typeof value === 'string' ? parseInt(value) : value
+  setPersistedPageSize(newPageSize)
   emit('update:pageSize', newPageSize)
 }
 
diff --git a/frontend/src/components/sora/SoraLibraryPage.vue b/frontend/src/components/sora/SoraLibraryPage.vue
index 0e2b5e1d..1d49fe60 100644
--- a/frontend/src/components/sora/SoraLibraryPage.vue
+++ b/frontend/src/components/sora/SoraLibraryPage.vue
@@ -126,6 +126,7 @@
 import { ref, computed, onMounted } from 'vue'
 import { useI18n } from 'vue-i18n'
 import soraAPI, { type SoraGeneration } from '@/api/sora'
+import { getPersistedPageSize } from '@/composables/usePersistedPageSize'
 import SoraMediaPreview from './SoraMediaPreview.vue'
 
 const emit = defineEmits<{
@@ -190,7 +191,7 @@ async function loadItems(pageNum: number) {
       status: 'completed',
       storage_type: 's3,local',
       page: pageNum,
-      page_size: 20
+      page_size: getPersistedPageSize()
     })
     const rows = Array.isArray(res.data) ? res.data : []
     if (pageNum === 1) {
diff --git a/frontend/src/composables/usePersistedPageSize.ts b/frontend/src/composables/usePersistedPageSize.ts
new file mode 100644
index 00000000..9e173a1d
--- /dev/null
+++ b/frontend/src/composables/usePersistedPageSize.ts
@@ -0,0 +1,27 @@
+const STORAGE_KEY = 'table-page-size'
+const DEFAULT_PAGE_SIZE = 20
+
+/**
+ * 从 localStorage 读取/写入 pageSize
+ * 全局共享一个 key，所有表格统一偏好
+ */
+export function getPersistedPageSize(fallback = DEFAULT_PAGE_SIZE): number {
+  try {
+    const stored = localStorage.getItem(STORAGE_KEY)
+    if (stored) {
+      const parsed = Number(stored)
+      if (Number.isFinite(parsed) && parsed > 0) return parsed
+    }
+  } catch {
+    // localStorage 不可用（隐私模式等）
+  }
+  return fallback
+}
+
+export function setPersistedPageSize(size: number): void {
+  try {
+    localStorage.setItem(STORAGE_KEY, String(size))
+  } catch {
+    // 静默失败
+  }
+}
diff --git a/frontend/src/composables/useTableLoader.ts b/frontend/src/composables/useTableLoader.ts
index 5fb6c5e0..67c1dcdb 100644
--- a/frontend/src/composables/useTableLoader.ts
+++ b/frontend/src/composables/useTableLoader.ts
@@ -1,6 +1,7 @@
 import { ref, reactive, onUnmounted, toRaw } from 'vue'
 import { useDebounceFn } from '@vueuse/core'
 import type { BasePaginationResponse, FetchOptions } from '@/types'
+import { getPersistedPageSize, setPersistedPageSize } from './usePersistedPageSize'
 
 interface PaginationState {
   page: number
@@ -21,14 +22,14 @@ interface TableLoaderOptions<T, P> {
  * 统一处理分页、筛选、搜索防抖和请求取消
  */
 export function useTableLoader<T, P extends Record<string, any>>(options: TableLoaderOptions<T, P>) {
-  const { fetchFn, initialParams, pageSize = 20, debounceMs = 300 } = options
+  const { fetchFn, initialParams, pageSize, debounceMs = 300 } = options
 
   const items = ref<T[]>([])
   const loading = ref(false)
   const params = reactive<P>({ ...(initialParams || {}) } as P)
   const pagination = reactive<PaginationState>({
     page: 1,
-    page_size: pageSize,
+    page_size: pageSize ?? getPersistedPageSize(),
     total: 0,
     pages: 0
   })
@@ -87,6 +88,7 @@ export function useTableLoader<T, P extends Record<string, any>>(options: TableL
   const handlePageSizeChange = (size: number) => {
     pagination.page_size = size
     pagination.page = 1
+    setPersistedPageSize(size)
     load()
   }
 
diff --git a/frontend/src/views/admin/AnnouncementsView.vue b/frontend/src/views/admin/AnnouncementsView.vue
index 1c716807..fcb7e283 100644
--- a/frontend/src/views/admin/AnnouncementsView.vue
+++ b/frontend/src/views/admin/AnnouncementsView.vue
@@ -239,6 +239,7 @@
 import { computed, onMounted, reactive, ref } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useAppStore } from '@/stores/app'
+import { getPersistedPageSize } from '@/composables/usePersistedPageSize'
 import { adminAPI } from '@/api/admin'
 import { formatDateTime, formatDateTimeLocalInput, parseDateTimeLocalInput } from '@/utils/format'
 import type { AdminGroup, Announcement, AnnouncementTargeting } from '@/types'
@@ -270,7 +271,7 @@ const searchQuery = ref('')
 
 const pagination = reactive({
   page: 1,
-  page_size: 20,
+  page_size: getPersistedPageSize(),
   total: 0,
   pages: 0
 })
diff --git a/frontend/src/views/admin/GroupsView.vue b/frontend/src/views/admin/GroupsView.vue
index ddd7e672..a7c1a10d 100644
--- a/frontend/src/views/admin/GroupsView.vue
+++ b/frontend/src/views/admin/GroupsView.vue
@@ -1855,6 +1855,7 @@ import GroupCapacityBadge from '@/components/common/GroupCapacityBadge.vue'
 import { VueDraggable } from 'vue-draggable-plus'
 import { createStableObjectKeyResolver } from '@/utils/stableObjectKey'
 import { useKeyedDebouncedSearch } from '@/composables/useKeyedDebouncedSearch'
+import { getPersistedPageSize } from '@/composables/usePersistedPageSize'
 
 const { t } = useI18n()
 const appStore = useAppStore()
@@ -2016,7 +2017,7 @@ const filters = reactive({
 })
 const pagination = reactive({
   page: 1,
-  page_size: 20,
+  page_size: getPersistedPageSize(),
   total: 0,
   pages: 0
 })
diff --git a/frontend/src/views/admin/PromoCodesView.vue b/frontend/src/views/admin/PromoCodesView.vue
index 73499f80..7bf670f7 100644
--- a/frontend/src/views/admin/PromoCodesView.vue
+++ b/frontend/src/views/admin/PromoCodesView.vue
@@ -383,6 +383,7 @@ import { ref, reactive, computed, onMounted, onUnmounted } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useAppStore } from '@/stores/app'
 import { useClipboard } from '@/composables/useClipboard'
+import { getPersistedPageSize } from '@/composables/usePersistedPageSize'
 import { adminAPI } from '@/api/admin'
 import { formatDateTime } from '@/utils/format'
 import type { PromoCode, PromoCodeUsage } from '@/types'
@@ -414,7 +415,7 @@ const filters = reactive({
 
 const pagination = reactive({
   page: 1,
-  page_size: 20,
+  page_size: getPersistedPageSize(),
   total: 0
 })
 
diff --git a/frontend/src/views/admin/ProxiesView.vue b/frontend/src/views/admin/ProxiesView.vue
index 22694d07..032a0a2f 100644
--- a/frontend/src/views/admin/ProxiesView.vue
+++ b/frontend/src/views/admin/ProxiesView.vue
@@ -884,6 +884,7 @@ import PlatformTypeBadge from '@/components/common/PlatformTypeBadge.vue'
 import { useClipboard } from '@/composables/useClipboard'
 import { useSwipeSelect } from '@/composables/useSwipeSelect'
 import { useTableSelection } from '@/composables/useTableSelection'
+import { getPersistedPageSize } from '@/composables/usePersistedPageSize'
 
 const { t } = useI18n()
 const appStore = useAppStore()
@@ -941,7 +942,7 @@ const filters = reactive({
 })
 const pagination = reactive({
   page: 1,
-  page_size: 20,
+  page_size: getPersistedPageSize(),
   total: 0,
   pages: 0
 })
diff --git a/frontend/src/views/admin/RedeemView.vue b/frontend/src/views/admin/RedeemView.vue
index 17e612c5..ad4fde5c 100644
--- a/frontend/src/views/admin/RedeemView.vue
+++ b/frontend/src/views/admin/RedeemView.vue
@@ -395,6 +395,7 @@ import { ref, reactive, computed, onMounted, onUnmounted, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useAppStore } from '@/stores/app'
 import { useClipboard } from '@/composables/useClipboard'
+import { getPersistedPageSize } from '@/composables/usePersistedPageSize'
 import { adminAPI } from '@/api/admin'
 import { formatDateTime } from '@/utils/format'
 import type { RedeemCode, RedeemCodeType, Group, GroupPlatform, SubscriptionType } from '@/types'
@@ -532,7 +533,7 @@ const filters = reactive({
 })
 const pagination = reactive({
   page: 1,
-  page_size: 20,
+  page_size: getPersistedPageSize(),
   total: 0,
   pages: 0
 })
diff --git a/frontend/src/views/admin/SubscriptionsView.vue b/frontend/src/views/admin/SubscriptionsView.vue
index 0b4a627f..bb9b5d9a 100644
--- a/frontend/src/views/admin/SubscriptionsView.vue
+++ b/frontend/src/views/admin/SubscriptionsView.vue
@@ -744,6 +744,7 @@ import type { UserSubscription, Group, GroupPlatform, SubscriptionType } from '@
 import type { SimpleUser } from '@/api/admin/usage'
 import type { Column } from '@/components/common/types'
 import { formatDateOnly } from '@/utils/format'
+import { getPersistedPageSize } from '@/composables/usePersistedPageSize'
 import AppLayout from '@/components/layout/AppLayout.vue'
 import TablePageLayout from '@/components/layout/TablePageLayout.vue'
 import DataTable from '@/components/common/DataTable.vue'
@@ -928,7 +929,7 @@ const sortState = reactive({
 
 const pagination = reactive({
   page: 1,
-  page_size: 20,
+  page_size: getPersistedPageSize(),
   total: 0,
   pages: 0
 })
diff --git a/frontend/src/views/admin/UsageView.vue b/frontend/src/views/admin/UsageView.vue
index dec1e043..4911f7b3 100644
--- a/frontend/src/views/admin/UsageView.vue
+++ b/frontend/src/views/admin/UsageView.vue
@@ -124,6 +124,7 @@ import { useI18n } from 'vue-i18n'
 import { saveAs } from 'file-saver'
 import { useRoute } from 'vue-router'
 import { useAppStore } from '@/stores/app'; import { adminAPI } from '@/api/admin'; import { adminUsageAPI } from '@/api/admin/usage'
+import { getPersistedPageSize } from '@/composables/usePersistedPageSize'
 import { formatReasoningEffort } from '@/utils/format'
 import { resolveUsageRequestType, requestTypeToLegacyStream } from '@/utils/usageRequestType'
 import AppLayout from '@/components/layout/AppLayout.vue'; import Pagination from '@/components/common/Pagination.vue'; import Select from '@/components/common/Select.vue'; import DateRangePicker from '@/components/common/DateRangePicker.vue'
@@ -203,7 +204,7 @@ const getGranularityForRange = (start: string, end: string): 'day' | 'hour' => {
 const defaultRange = getLast24HoursRangeDates()
 const startDate = ref(defaultRange.start); const endDate = ref(defaultRange.end)
 const filters = ref<AdminUsageQueryParams>({ user_id: undefined, model: undefined, group_id: undefined, request_type: undefined, billing_type: null, start_date: startDate.value, end_date: endDate.value })
-const pagination = reactive({ page: 1, page_size: 20, total: 0 })
+const pagination = reactive({ page: 1, page_size: getPersistedPageSize(), total: 0 })
 
 const getSingleQueryValue = (value: string | null | Array<string | null> | undefined): string | undefined => {
   if (Array.isArray(value)) return value.find((item): item is string => typeof item === 'string' && item.length > 0)
diff --git a/frontend/src/views/admin/UsersView.vue b/frontend/src/views/admin/UsersView.vue
index 06310888..eea6ed33 100644
--- a/frontend/src/views/admin/UsersView.vue
+++ b/frontend/src/views/admin/UsersView.vue
@@ -521,6 +521,7 @@
 import { ref, reactive, computed, onMounted, onUnmounted } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useAppStore } from '@/stores/app'
+import { getPersistedPageSize } from '@/composables/usePersistedPageSize'
 import { formatDateTime } from '@/utils/format'
 import Icon from '@/components/icons/Icon.vue'
 
@@ -774,7 +775,7 @@ const attributeDefinitions = ref<UserAttributeDefinition[]>([])
 const userAttributeValues = ref<Record<number, Record<number, string>>>({})
 const pagination = reactive({
   page: 1,
-  page_size: 20,
+  page_size: getPersistedPageSize(),
   total: 0,
   pages: 0
 })
diff --git a/frontend/src/views/user/KeysView.vue b/frontend/src/views/user/KeysView.vue
index 3068cb7f..836fd2cb 100644
--- a/frontend/src/views/user/KeysView.vue
+++ b/frontend/src/views/user/KeysView.vue
@@ -1035,6 +1035,7 @@
 	import { useAppStore } from '@/stores/app'
 	import { useOnboardingStore } from '@/stores/onboarding'
 	import { useClipboard } from '@/composables/useClipboard'
+import { getPersistedPageSize } from '@/composables/usePersistedPageSize'
 
 const { t } = useI18n()
 import { keysAPI, authAPI, usageAPI, userGroupsAPI } from '@/api'
@@ -1101,7 +1102,7 @@ const userGroupRates = ref<Record<number, number>>({})
 
 const pagination = ref({
   page: 1,
-  page_size: 10,
+  page_size: getPersistedPageSize(),
   total: 0,
   pages: 0
 })
diff --git a/frontend/src/views/user/UsageView.vue b/frontend/src/views/user/UsageView.vue
index a7952096..3b8ef2e0 100644
--- a/frontend/src/views/user/UsageView.vue
+++ b/frontend/src/views/user/UsageView.vue
@@ -496,6 +496,7 @@ import Icon from '@/components/icons/Icon.vue'
 import type { UsageLog, ApiKey, UsageQueryParams, UsageStatsResponse } from '@/types'
 import type { Column } from '@/components/common/types'
 import { formatDateTime, formatReasoningEffort } from '@/utils/format'
+import { getPersistedPageSize } from '@/composables/usePersistedPageSize'
 import { formatTokenPricePerMillion } from '@/utils/usagePricing'
 import { getUsageServiceTierLabel } from '@/utils/usageServiceTier'
 import { resolveUsageRequestType } from '@/utils/usageRequestType'
@@ -584,7 +585,7 @@ const onDateRangeChange = (range: {
 
 const pagination = reactive({
   page: 1,
-  page_size: 20,
+  page_size: getPersistedPageSize(),
   total: 0,
   pages: 0
 })