diff --git a/frontend/src/features/admin/api/adminQrCodes.ts b/frontend/src/features/admin/api/adminQrCodes.ts
index de7f4dc..c4c1c7c 100644
--- a/frontend/src/features/admin/api/adminQrCodes.ts
+++ b/frontend/src/features/admin/api/adminQrCodes.ts
@@ -182,6 +182,10 @@ export async function fetchSiteQrCodes(siteId: number, query: QrCodeListQuery =
       params: {
         status: query.status || undefined,
         keyword: query.keyword?.trim() || undefined,
+        bound: query.bound || undefined,
+        expire_status: query.expire_status || undefined,
+        created_start: query.created_start || undefined,
+        created_end: query.created_end || undefined,
         page: query.page || 1,
         limit: query.limit || 20,
       },
diff --git a/frontend/src/features/admin/views/AdminDistributionQrCodePoolView.vue b/frontend/src/features/admin/views/AdminDistributionQrCodePoolView.vue
index 82a7b0a..ca74406 100644
--- a/frontend/src/features/admin/views/AdminDistributionQrCodePoolView.vue
+++ b/frontend/src/features/admin/views/AdminDistributionQrCodePoolView.vue
@@ -1,7 +1,7 @@
 <script setup lang="ts">
-import { computed, onBeforeUnmount, onMounted, ref, watch } from 'vue'
+import { computed, onBeforeUnmount, onMounted, reactive, ref, watch } from 'vue'
 import { ElMessage, ElMessageBox } from 'element-plus'
-import { Delete, Plus, Refresh, UploadFilled } from '@element-plus/icons-vue'
+import { Delete, Plus, Refresh, Search, UploadFilled } from '@element-plus/icons-vue'
 
 import {
   batchCreateSiteQrCodes,
@@ -13,6 +13,8 @@ import {
   updateSiteQrCode,
   type ChatQrCode,
   type CreateQrCodePayload,
+  type QrCodeBooleanFilter,
+  type QrCodeExpireStatus,
   type QrCodeStats,
   type QrCodeStatus,
 } from '@/features/admin/api/adminQrCodes'
@@ -38,7 +40,38 @@ const qrcodes = ref<ChatQrCode[]>([])
 const total = ref(0)
 const currentPage = ref(1)
 const currentPageSize = ref(20)
-const statusFilter = ref<QrCodeStatus | ''>('')
+const filters = reactive<{
+  keyword: string
+  status: QrCodeStatus | ''
+  bound: QrCodeBooleanFilter | ''
+  expire_status: QrCodeExpireStatus | ''
+  created_range: string[]
+}>({
+  keyword: '',
+  status: '',
+  bound: '',
+  expire_status: '',
+  created_range: [],
+})
+
+const boundFilterOptions: { label: string; value: QrCodeBooleanFilter }[] = [
+  { label: '已绑定', value: 'true' },
+  { label: '未绑定', value: 'false' },
+]
+
+const expireStatusOptions: { label: string; value: QrCodeExpireStatus }[] = [
+  { label: '未过期', value: 'valid' },
+  { label: '即将过期', value: 'expiring_soon' },
+  { label: '已过期', value: 'expired' },
+  { label: '永久有效', value: 'permanent' },
+]
+
+function filterDateToISO(value?: string) {
+  if (!value) return undefined
+  const date = new Date(value)
+  if (Number.isNaN(date.getTime())) return undefined
+  return date.toISOString()
+}
 const stats = ref<QrCodeStats>({
   unused_count: 0,
   used_count: 0,
@@ -76,13 +109,38 @@ const maxBatchUploadCount = 20
 
 const selectedSite = computed(() => sites.value.find(site => site.id === siteId.value))
 
+// 记住每个管理员上次查看的分站，下次进页面直接落到该站点
+const siteMemoryKey = computed(() => `admin_distro_qrcode_last_site_${adminSession.adminId || 0}`)
+
+function readRememberedSiteId() {
+  try {
+    const raw = localStorage.getItem(siteMemoryKey.value)
+    const parsed = Number(raw)
+    return Number.isFinite(parsed) && parsed > 0 ? parsed : undefined
+  } catch {
+    return undefined
+  }
+}
+
+function rememberSiteId(id?: number) {
+  try {
+    if (id) localStorage.setItem(siteMemoryKey.value, String(id))
+    else localStorage.removeItem(siteMemoryKey.value)
+  } catch {
+    // localStorage 不可用（隐私模式等）时静默降级，不影响使用
+  }
+}
+
 async function loadSites() {
   try {
     sites.value = await fetchDistributionSites()
-    const firstSite = sites.value[0]
-    if (!siteId.value && firstSite) {
-      siteId.value = firstSite.id
-    }
+    const rememberedId = readRememberedSiteId()
+    const rememberedSite = rememberedId
+      ? sites.value.find(site => site.id === rememberedId)
+      : undefined
+    // 记忆站点已不存在（被删除/无权限）时回退到第一个站点
+    siteId.value = rememberedSite?.id ?? sites.value[0]?.id
+    if (siteId.value) rememberSiteId(siteId.value)
   } catch (error) {
     ElMessage.error(readError(error, '加载分销站点失败'))
   }
@@ -98,7 +156,12 @@ async function loadPool() {
   try {
     const [list, nextStats] = await Promise.all([
       fetchSiteQrCodes(siteId.value, {
-        status: statusFilter.value || undefined,
+        status: filters.status || undefined,
+        keyword: filters.keyword.trim() || undefined,
+        bound: filters.bound || undefined,
+        expire_status: filters.expire_status || undefined,
+        created_start: filterDateToISO(filters.created_range?.[0]),
+        created_end: filterDateToISO(filters.created_range?.[1]),
         page: currentPage.value,
         limit: currentPageSize.value,
       }),
@@ -113,6 +176,7 @@ async function loadPool() {
 }
 
 function handleSiteChange() {
+  rememberSiteId(siteId.value)
   currentPage.value = 1
   loadPool()
 }
@@ -122,6 +186,15 @@ function handleFilter() {
   loadPool()
 }
 
+function resetFilters() {
+  filters.keyword = ''
+  filters.status = ''
+  filters.bound = ''
+  filters.expire_status = ''
+  filters.created_range = []
+  handleFilter()
+}
+
 async function recognizeGroupName(file: File) {
   const { job_id } = await submitOCRJob(file)
   const delays = [1000, 2000, 3000, 3000, 3000]
@@ -294,7 +367,7 @@ onBeforeUnmount(() => {
         />
       </el-select>
       <el-select
-        v-model="statusFilter"
+        v-model="filters.status"
         placeholder="状态"
         clearable
         class="status-select"
@@ -307,6 +380,56 @@ onBeforeUnmount(() => {
           :value="option.value"
         />
       </el-select>
+      <el-input
+        v-model="filters.keyword"
+        clearable
+        class="keyword-input"
+        :prefix-icon="Search"
+        placeholder="群名 / 备注 / 绑定群 / ID"
+        @clear="handleFilter"
+        @keyup.enter="handleFilter"
+      />
+      <el-select
+        v-model="filters.bound"
+        placeholder="绑定群"
+        clearable
+        class="compact-select"
+        @change="handleFilter"
+      >
+        <el-option
+          v-for="opt in boundFilterOptions"
+          :key="`bound-${opt.value}`"
+          :label="opt.label"
+          :value="opt.value"
+        />
+      </el-select>
+      <el-select
+        v-model="filters.expire_status"
+        placeholder="过期状态"
+        clearable
+        class="compact-select"
+        @change="handleFilter"
+      >
+        <el-option
+          v-for="opt in expireStatusOptions"
+          :key="opt.value"
+          :label="opt.label"
+          :value="opt.value"
+        />
+      </el-select>
+      <el-date-picker
+        v-model="filters.created_range"
+        type="datetimerange"
+        range-separator="至"
+        start-placeholder="上传开始"
+        end-placeholder="上传结束"
+        format="YYYY-MM-DD HH:mm"
+        value-format="YYYY-MM-DDTHH:mm:ss"
+        class="date-range-filter"
+        @change="handleFilter"
+      />
+      <el-button type="primary" :icon="Search" @click="handleFilter">筛选</el-button>
+      <el-button @click="resetFilters">重置</el-button>
       <el-button :icon="Refresh" @click="loadPool">刷新</el-button>
     </div>
 
@@ -466,12 +589,25 @@ onBeforeUnmount(() => {
   align-items: center;
 }
 
+.toolbar {
+  flex-wrap: wrap;
+}
+
 .site-select {
   width: 280px;
 }
 
-.status-select {
-  width: 140px;
+.status-select,
+.compact-select {
+  width: 130px;
+}
+
+.keyword-input {
+  width: 220px;
+}
+
+.date-range-filter {
+  max-width: 360px;
 }
 
 .stats div {