diff --git a/frontend/superadmin/dist/index.html b/frontend/superadmin/dist/index.html
index 90335e8..6664392 100644
--- a/frontend/superadmin/dist/index.html
+++ b/frontend/superadmin/dist/index.html
@@ -7,8 +7,8 @@
       <meta name="viewport" content="width=device-width, initial-scale=1.0">
       <title>Sakai Vue</title>
       <link href="https://fonts.cdnfonts.com/css/lato" rel="stylesheet">
-  <script type="module" crossorigin src="./assets/index-CDRO-wVH.js"></script>
-  <link rel="stylesheet" crossorigin href="./assets/index-BMyA_4RT.css">
+  <script type="module" crossorigin src="./assets/index-5TB6SaKe.js"></script>
+  <link rel="stylesheet" crossorigin href="./assets/index-7wg5D3fl.css">
 </head>
 
 <body>
diff --git a/frontend/superadmin/src/main.js b/frontend/superadmin/src/main.js
index d974b9e..cb9ebef 100644
--- a/frontend/superadmin/src/main.js
+++ b/frontend/superadmin/src/main.js
@@ -6,6 +6,7 @@ import Aura from '@primeuix/themes/aura';
 import PrimeVue from 'primevue/config';
 import ConfirmationService from 'primevue/confirmationservice';
 import ToastService from 'primevue/toastservice';
+import Tooltip from 'primevue/tooltip';
 
 import '@/assets/tailwind.css';
 import '@/assets/styles.scss';
@@ -23,5 +24,6 @@ app.use(PrimeVue, {
 });
 app.use(ToastService);
 app.use(ConfirmationService);
+app.directive('tooltip', Tooltip);
 
 app.mount('#app');
diff --git a/frontend/superadmin/src/service/TenantService.js b/frontend/superadmin/src/service/TenantService.js
index 32d4d61..95e59d9 100644
--- a/frontend/superadmin/src/service/TenantService.js
+++ b/frontend/superadmin/src/service/TenantService.js
@@ -7,8 +7,8 @@ function normalizeItems(items) {
 }
 
 export const TenantService = {
-    async listTenants({ page, limit, name, sortField, sortOrder } = {}) {
-        const query = { page, limit, name };
+    async listTenants({ page, limit, name, code, sortField, sortOrder } = {}) {
+        const query = { page, limit, name, code };
         if (sortField && sortOrder) {
             if (sortOrder === 1) query.asc = sortField;
             if (sortOrder === -1) query.desc = sortField;
@@ -21,5 +21,11 @@ export const TenantService = {
             total: data?.total ?? 0,
             items: normalizeItems(data?.items)
         };
+    },
+    async renewTenantExpire({ tenantID, duration }) {
+        return requestJson(`/super/v1/tenants/${tenantID}`, {
+            method: 'PATCH',
+            body: { duration }
+        });
     }
 };
diff --git a/frontend/superadmin/src/views/superadmin/Tenants.vue b/frontend/superadmin/src/views/superadmin/Tenants.vue
index 7f8f5b8..f71301b 100644
--- a/frontend/superadmin/src/views/superadmin/Tenants.vue
+++ b/frontend/superadmin/src/views/superadmin/Tenants.vue
@@ -1,7 +1,7 @@
 <script setup>
 import { TenantService } from '@/service/TenantService';
-import { onMounted, ref } from 'vue';
 import { useToast } from 'primevue/usetoast';
+import { onMounted, ref } from 'vue';
 
 const toast = useToast();
 
@@ -12,7 +12,7 @@ const totalRecords = ref(0);
 const page = ref(1);
 const rows = ref(10);
 
-const name = ref('');
+const keyword = ref('');
 const sortField = ref('id');
 const sortOrder = ref(-1);
 
@@ -36,13 +36,33 @@ function getStatusSeverity(status) {
     }
 }
 
+function getExpiryDaysInfo(expiredAt) {
+    if (!expiredAt) return { daysLeft: null, tooltipText: '未设置过期时间', textClass: '' };
+    const expiredDate = new Date(expiredAt);
+    if (Number.isNaN(expiredDate.getTime())) return { daysLeft: null, tooltipText: String(expiredAt), textClass: '' };
+
+    const msPerDay = 24 * 60 * 60 * 1000;
+    const deltaDays = Math.ceil((expiredDate.getTime() - Date.now()) / msPerDay);
+    const isExpired = deltaDays < 0;
+    const daysAbs = Math.abs(deltaDays);
+    const tooltipText = isExpired ? `已过期 ${daysAbs} 天` : `剩余 ${deltaDays} 天`;
+
+    let textClass = '';
+    if (isExpired) textClass = 'text-red-500';
+    else if (deltaDays < 10) textClass = 'text-red-500';
+    else if (deltaDays < 30) textClass = 'text-orange-500';
+
+    return { daysLeft: deltaDays, tooltipText, textClass };
+}
+
 async function loadTenants() {
     loading.value = true;
     try {
         const result = await TenantService.listTenants({
             page: page.value,
             limit: rows.value,
-            name: name.value,
+            name: keyword.value,
+            code: keyword.value,
             sortField: sortField.value,
             sortOrder: sortOrder.value
         });
@@ -66,7 +86,7 @@ function onSearch() {
 }
 
 function onReset() {
-    name.value = '';
+    keyword.value = '';
     sortField.value = 'id';
     sortOrder.value = -1;
     page.value = 1;
@@ -86,6 +106,41 @@ function onSort(event) {
     loadTenants();
 }
 
+const renewDialogVisible = ref(false);
+const renewing = ref(false);
+const renewTenant = ref(null);
+const renewDuration = ref(30);
+const durationOptions = [
+    { label: '7 天', value: 7 },
+    { label: '30 天', value: 30 },
+    { label: '90 天', value: 90 },
+    { label: '180 天', value: 180 },
+    { label: '365 天', value: 365 }
+];
+
+function openRenewDialog(item) {
+    renewTenant.value = item;
+    renewDuration.value = 30;
+    renewDialogVisible.value = true;
+}
+
+async function confirmRenew() {
+    const tenantID = renewTenant.value?.id;
+    if (!tenantID) return;
+
+    renewing.value = true;
+    try {
+        await TenantService.renewTenantExpire({ tenantID, duration: renewDuration.value });
+        toast.add({ severity: 'success', summary: '续期成功', detail: `TenantID: ${tenantID}`, life: 3000 });
+        renewDialogVisible.value = false;
+        await loadTenants();
+    } catch (error) {
+        toast.add({ severity: 'error', summary: '续期失败', detail: error?.message || '无法续期', life: 4000 });
+    } finally {
+        renewing.value = false;
+    }
+}
+
 onMounted(() => {
     loadTenants();
 });
@@ -104,61 +159,74 @@ onMounted(() => {
                         <InputIcon>
                             <i class="pi pi-search" />
                         </InputIcon>
-                        <InputText v-model="name" placeholder="按名称搜索" @keyup.enter="onSearch" />
+                        <InputText v-model="keyword" placeholder="名称 / Code" @keyup.enter="onSearch" />
                     </IconField>
                     <Button label="查询" icon="pi pi-search" severity="secondary" @click="onSearch" />
                     <Button label="重置" icon="pi pi-refresh" severity="secondary" @click="onReset" />
                 </div>
             </div>
 
-            <DataTable
-                :value="tenants"
-                dataKey="id"
-                :loading="loading"
-                lazy
-                :paginator="true"
-                :rows="rows"
-                :totalRecords="totalRecords"
-                :first="(page - 1) * rows"
-                :rowsPerPageOptions="[10, 20, 50, 100]"
-                sortMode="single"
-                :sortField="sortField"
-                :sortOrder="sortOrder"
-                @page="onPage"
-                @sort="onSort"
+            <DataTable :value="tenants" dataKey="id" :loading="loading" lazy :paginator="true" :rows="rows"
+                :totalRecords="totalRecords" :first="(page - 1) * rows" :rowsPerPageOptions="[10, 20, 50, 100]"
+                sortMode="single" :sortField="sortField" :sortOrder="sortOrder" @page="onPage" @sort="onSort"
                 currentPageReportTemplate="显示第 {first} - {last} 条，共 {totalRecords} 条"
                 paginatorTemplate="FirstPageLink PrevPageLink PageLinks NextPageLink LastPageLink CurrentPageReport RowsPerPageDropdown"
-                scrollable
-                scrollHeight="flex"
-                responsiveLayout="scroll"
-            >
+                scrollable scrollHeight="flex" responsiveLayout="scroll">
                 <Column field="id" header="ID" sortable style="min-width: 6rem" />
-                <Column field="uuid" header="UUID" style="min-width: 14rem" />
                 <Column field="code" header="Code" style="min-width: 10rem" />
                 <Column field="name" header="名称" sortable style="min-width: 14rem" />
-                <Column field="status" header="状态" sortable style="min-width: 10rem">
+                <Column field="status_description" header="状态" style="min-width: 10rem">
                     <template #body="{ data }">
-                        <Tag :value="data.status || '-'" :severity="getStatusSeverity(data.status)" />
+                        <Tag :value="data.status_description || '-'" :severity="getStatusSeverity(data.status)" />
+                    </template>
+                </Column>
+                <Column field="user_count" header="用户数" sortable style="min-width: 8rem" />
+                <Column field="user_balance" header="余额" sortable style="min-width: 8rem" />
+                <Column field="expired_at" header="过期时间" sortable style="min-width: 14rem">
+                    <template #body="{ data }">
+                        <span v-if="data.expired_at" v-tooltip="getExpiryDaysInfo(data.expired_at).tooltipText"
+                            :class="getExpiryDaysInfo(data.expired_at).textClass">
+                            {{ formatDate(data.expired_at) }}
+                        </span>
+                        <span v-else>-</span>
                     </template>
                 </Column>
-                <Column field="userCount" header="用户数" sortable style="min-width: 8rem" />
-                <Column field="userBalance" header="余额" sortable style="min-width: 8rem" />
                 <Column field="created_at" header="创建时间" sortable style="min-width: 14rem">
                     <template #body="{ data }">
                         {{ formatDate(data.created_at) }}
                     </template>
                 </Column>
-                <Column field="expired_at" header="过期时间" sortable style="min-width: 14rem">
-                    <template #body="{ data }">
-                        {{ formatDate(data.expired_at) }}
-                    </template>
-                </Column>
                 <Column field="updated_at" header="更新时间" sortable style="min-width: 14rem">
                     <template #body="{ data }">
                         {{ formatDate(data.updated_at) }}
                     </template>
                 </Column>
+                <Column header="操作" :exportable="false" style="min-width: 10rem">
+                    <template #body="{ data }">
+                        <Button label="续期" icon="pi pi-refresh" size="small" severity="secondary"
+                            @click="openRenewDialog(data)" />
+                    </template>
+                </Column>
             </DataTable>
         </div>
+
+        <Dialog v-model:visible="renewDialogVisible" :modal="true" :style="{ width: '420px' }">
+            <template #header>
+                <div class="flex items-center gap-2">
+                    <span class="font-medium">为【 {{ renewTenant?.name ?? '-' }} 】续期</span>
+                </div>
+            </template>
+            <div class="flex flex-col gap-4">
+                <div>
+                    <label class="block font-medium mb-2">续期时长</label>
+                    <Select v-model="renewDuration" :options="durationOptions" optionLabel="label" optionValue="value"
+                        placeholder="选择续期时长" fluid />
+                </div>
+            </div>
+            <template #footer>
+                <Button label="取消" icon="pi pi-times" text @click="renewDialogVisible = false" :disabled="renewing" />
+                <Button label="确认续期" icon="pi pi-check" @click="confirmRenew" :loading="renewing" />
+            </template>
+        </Dialog>
     </div>
 </template>
