diff --git a/apps/daxpay-admin/src/api/payment/channel/alipay/channel-merchant.api.ts b/apps/daxpay-admin/src/api/payment/channel/alipay/channel-merchant.api.ts
index 670708313..59cd98e54 100644
--- a/apps/daxpay-admin/src/api/payment/channel/alipay/channel-merchant.api.ts
+++ b/apps/daxpay-admin/src/api/payment/channel/alipay/channel-merchant.api.ts
@@ -12,6 +12,12 @@ export const AlipayIsvChannelMerchantApi = {
   create(data: AlipayIsvChannelMerchantCreateParam): Promise<Result<void>> {
     return defHttp.post({ url: '/admin/alipay/isv-channel-merchant/create', data });
   },
+  /**
+   * 更新应用授权令牌(手动设置/更新, 适用于令牌补充或过期/变更后重新绑定)
+   */
+  updateAppAuthToken(data: AlipayIsvAppAuthTokenUpdateParam): Promise<Result<void>> {
+    return defHttp.post({ url: '/admin/alipay/isv-channel-merchant/update-app-auth-token', data });
+  },
   /**
    * 根据通道商户号查询支付宝服务商通道商户配置
    */
@@ -103,3 +109,13 @@ export interface AlipayDirectChannelMerchantCreateParam {
   /** 支付宝商家用户ID(2088开头) */
   alipayUserId: string;
 }
+
+/**
+ * 应用授权令牌更新参数
+ */
+export interface AlipayIsvAppAuthTokenUpdateParam {
+  /** 通道商户号 */
+  channelMchNo: string;
+  /** 应用授权令牌 */
+  appAuthToken: string;
+}
diff --git a/apps/daxpay-admin/src/locales/langs/en-US/payment/merchant/channelMerchant.json b/apps/daxpay-admin/src/locales/langs/en-US/payment/merchant/channelMerchant.json
index 886812b16..a2ca91d53 100644
--- a/apps/daxpay-admin/src/locales/langs/en-US/payment/merchant/channelMerchant.json
+++ b/apps/daxpay-admin/src/locales/langs/en-US/payment/merchant/channelMerchant.json
@@ -18,8 +18,8 @@
   "groupApp": "App Management",
   "cardBasicInfo": "Basic Info",
   "cardBasicInfoDesc": "View channel merchant basic configuration",
-  "cardAuthOperation": "Auth Operation",
-  "cardAuthOperationDesc": "Authorize platform to operate Alipay merchant, get app auth token",
+  "cardAuthOperation": "App Auth Token",
+  "cardAuthOperationDesc": "Set or update the app auth token for platform-operated Alipay merchant",
   "cardApp": "App Management",
   "cardAppDesc": "Channel merchant app creation and management",
   "basicInfoDrawerTitle": "Basic Info",
@@ -75,6 +75,12 @@
   "appAuthTokenPlaceholder": "Please enter app auth token",
   "appAuthTokenHelp": "The app_auth_token value obtained after merchant authorization",
   "appAuthTokenRequired": "Please enter app auth token",
+  "appAuthTokenSetTitle": "Set App Auth Token",
+  "appAuthTokenCurrent": "Current Token",
+  "appAuthTokenNew": "New Token",
+  "appAuthTokenNewPlaceholder": "Please enter the new app auth token",
+  "appAuthTokenUpdateConfirm": "Confirm updating the app auth token?",
+  "appAuthTokenUpdateSuccess": "App auth token updated successfully",
   "alipayIsvApp": "Alipay Application",
   "alipayIsvAppPlaceholder": "Please select an Alipay application",
   "alipayIsvAppRequired": "Please select an Alipay application",
diff --git a/apps/daxpay-admin/src/locales/langs/zh-CN/payment/merchant/channelMerchant.json b/apps/daxpay-admin/src/locales/langs/zh-CN/payment/merchant/channelMerchant.json
index c84c0c663..1b25e4ee7 100644
--- a/apps/daxpay-admin/src/locales/langs/zh-CN/payment/merchant/channelMerchant.json
+++ b/apps/daxpay-admin/src/locales/langs/zh-CN/payment/merchant/channelMerchant.json
@@ -18,8 +18,8 @@
   "groupApp": "应用管理",
   "cardBasicInfo": "基本信息",
   "cardBasicInfoDesc": "查看通道商户基础配置信息",
-  "cardAuthOperation": "代运营授权",
-  "cardAuthOperationDesc": "授权平台代运营支付宝商户，获取应用授权令牌",
+  "cardAuthOperation": "应用授权令牌",
+  "cardAuthOperationDesc": "设置或更新应用授权令牌（授权密钥），用于平台代运营支付宝商户",
   "cardApp": "应用管理",
   "cardAppDesc": "通道商户应用创建与管理",
   "basicInfoDrawerTitle": "基本信息",
@@ -75,6 +75,12 @@
   "appAuthTokenPlaceholder": "请输入应用授权令牌",
   "appAuthTokenHelp": "商家授权后获取到的app_auth_token值",
   "appAuthTokenRequired": "请输入应用授权令牌",
+  "appAuthTokenSetTitle": "设置应用授权令牌",
+  "appAuthTokenCurrent": "当前令牌",
+  "appAuthTokenNew": "新令牌",
+  "appAuthTokenNewPlaceholder": "请输入新的应用授权令牌",
+  "appAuthTokenUpdateConfirm": "确认更新应用授权令牌？",
+  "appAuthTokenUpdateSuccess": "应用授权令牌更新成功",
   "alipayIsvApp": "支付宝应用",
   "alipayIsvAppPlaceholder": "请选择支付宝应用",
   "alipayIsvAppRequired": "请选择支付宝应用",
diff --git a/apps/daxpay-admin/src/views/payment/channel/alipay/manage/mch/AlipayAppAuthTokenUpdate.vue b/apps/daxpay-admin/src/views/payment/channel/alipay/manage/mch/AlipayAppAuthTokenUpdate.vue
new file mode 100644
index 000000000..aab64955e
--- /dev/null
+++ b/apps/daxpay-admin/src/views/payment/channel/alipay/manage/mch/AlipayAppAuthTokenUpdate.vue
@@ -0,0 +1,128 @@
+<script lang="ts" setup>
+  import { ref } from 'vue';
+
+  import { $t } from '@vben/locales';
+
+  import {
+    AlipayIsvChannelMerchantApi,
+    type AlipayIsvChannelMerchantConfig,
+  } from '#/api/payment/channel/alipay/channel-merchant.api';
+  import { useMessage } from '#/hooks/useMessage';
+
+  defineOptions({ name: 'AlipayAppAuthTokenUpdate' });
+
+  const emit = defineEmits<{
+    (e: 'success'): void;
+  }>();
+
+  const { confirm, message } = useMessage();
+
+  const visible = ref(false);
+  const loading = ref(false);
+  const saving = ref(false);
+  const channelMchNo = ref('');
+  // 服务商通道商户配置(用于展示当前令牌)
+  const isvConfig = ref<AlipayIsvChannelMerchantConfig>({});
+  // 新令牌输入
+  const newAuthToken = ref('');
+
+  /** 脱敏展示敏感字段 */
+  function maskSecret(value?: string) {
+    if (!value) {
+      return '-';
+    }
+    if (value.length <= 8) {
+      return '****';
+    }
+    return `${value.slice(0, 4)}****${value.slice(-4)}`;
+  }
+
+  /** 加载当前配置, 展示已有令牌 */
+  function loadConfig() {
+    if (!channelMchNo.value) {
+      return;
+    }
+    loading.value = true;
+    isvConfig.value = {};
+    AlipayIsvChannelMerchantApi.findByChannelMchNo(channelMchNo.value)
+      .then(({ data }) => {
+        isvConfig.value = data || {};
+      })
+      .finally(() => {
+        loading.value = false;
+      });
+  }
+
+  /** 打开弹窗 */
+  function open(mchNo: string) {
+    channelMchNo.value = mchNo;
+    newAuthToken.value = '';
+    visible.value = true;
+    loadConfig();
+  }
+
+  /** 关闭弹窗 */
+  function close() {
+    visible.value = false;
+  }
+
+  /** 保存新令牌(二次确认后提交) */
+  function handleSave() {
+    if (!newAuthToken.value.trim()) {
+      message.warning($t('payment.merchant.channelMerchant.appAuthTokenRequired'));
+      return;
+    }
+    confirm({
+      title: $t('common.confirm'),
+      content: $t('payment.merchant.channelMerchant.appAuthTokenUpdateConfirm'),
+      okText: $t('common.okText'),
+      cancelText: $t('common.cancelText'),
+      onOk() {
+        saving.value = true;
+        return AlipayIsvChannelMerchantApi.updateAppAuthToken({
+          channelMchNo: channelMchNo.value,
+          appAuthToken: newAuthToken.value.trim(),
+        })
+          .then(() => {
+            message.success($t('payment.merchant.channelMerchant.appAuthTokenUpdateSuccess'));
+            emit('success');
+            close();
+          })
+          .finally(() => {
+            saving.value = false;
+          });
+      },
+    });
+  }
+
+  defineExpose({ open, close });
+</script>
+
+<template>
+  <a-modal
+    v-model:open="visible"
+    :title="$t('payment.merchant.channelMerchant.appAuthTokenSetTitle')"
+    :confirm-loading="saving"
+    :ok-text="$t('common.save')"
+    :cancel-text="$t('common.cancelText')"
+    destroy-on-hidden
+    @ok="handleSave"
+  >
+    <a-spin :spinning="loading">
+      <a-form :label-col="{ span: 6 }" :wrapper-col="{ span: 16 }">
+        <!-- 国际化：当前令牌 -->
+        <a-form-item :label="$t('payment.merchant.channelMerchant.appAuthTokenCurrent')">
+          {{ maskSecret(isvConfig.appAuthToken) }}
+        </a-form-item>
+        <!-- 国际化：新令牌 -->
+        <a-form-item :label="$t('payment.merchant.channelMerchant.appAuthTokenNew')">
+          <a-input
+            v-model:value="newAuthToken"
+            :placeholder="$t('payment.merchant.channelMerchant.appAuthTokenNewPlaceholder')"
+            allow-clear
+          />
+        </a-form-item>
+      </a-form>
+    </a-spin>
+  </a-modal>
+</template>
diff --git a/apps/daxpay-admin/src/views/payment/channel/alipay/manage/mch/AlipayChannelMerchantManage.vue b/apps/daxpay-admin/src/views/payment/channel/alipay/manage/mch/AlipayChannelMerchantManage.vue
index 75f1b00b2..36461f515 100644
--- a/apps/daxpay-admin/src/views/payment/channel/alipay/manage/mch/AlipayChannelMerchantManage.vue
+++ b/apps/daxpay-admin/src/views/payment/channel/alipay/manage/mch/AlipayChannelMerchantManage.vue
@@ -1,29 +1,30 @@
 <script lang="ts" setup>
-import { computed, ref } from 'vue';
+  import type { ChannelMerchantResult } from '#/api/payment/channel/channel-merchant.api';
 
-import { $t } from '@vben/locales';
+  import { computed, ref } from 'vue';
 
-import { IconifyIcon } from '@vben-core/icons';
+  import { $t } from '@vben/locales';
 
-import type { ChannelMerchantResult } from '#/api/payment/channel/channel-merchant.api';
-import { useMessage } from '#/hooks/useMessage';
+  import { IconifyIcon } from '@vben-core/icons';
 
-import AlipayChannelMerchantBasicInfo from './AlipayChannelMerchantBasicInfo.vue';
+  import AlipayAppAuthTokenUpdate from './AlipayAppAuthTokenUpdate.vue';
+  import AlipayChannelMerchantBasicInfo from './AlipayChannelMerchantBasicInfo.vue';
 
-defineOptions({ name: 'AlipayChannelMerchantManage' });
+  defineOptions({ name: 'AlipayChannelMerchantManage' });
 
-const mchNo = ref('');
-const channelMchNo = ref('');
-const channelMerchant = ref<ChannelMerchantResult>({});
-const basicInfoRef = ref<InstanceType<typeof AlipayChannelMerchantBasicInfo>>();
-const { message } = useMessage();
+  const mchNo = ref('');
+  const channelMchNo = ref('');
+  const channelMerchant = ref<ChannelMerchantResult>({});
+  const basicInfoRef = ref<InstanceType<typeof AlipayChannelMerchantBasicInfo>>();
+  // 应用授权令牌更新弹窗
+  const authTokenUpdateRef = ref<InstanceType<typeof AlipayAppAuthTokenUpdate>>();
 
-/** 功能卡片配置（服务商通道商户：仅基本信息） */
-const functionCards = computed(() => [
-  {
-    // 国际化：基础管理
-    group: $t('payment.merchant.channelMerchant.groupBasic'),
-    color: 'blue',
+  /** 功能卡片配置（服务商通道商户：仅基本信息） */
+  const functionCards = computed(() => [
+    {
+      // 国际化：基础管理
+      group: $t('payment.merchant.channelMerchant.groupBasic'),
+      color: 'blue',
       cards: [
         {
           key: 'basicInfo',
@@ -34,51 +35,50 @@ const functionCards = computed(() => [
         },
         {
           key: 'authOperation',
-          // 国际化：代运营授权
+          // 国际化：应用授权令牌
           title: $t('payment.merchant.channelMerchant.cardAuthOperation'),
           icon: 'ant-design:safety-certificate-outlined',
           description: $t('payment.merchant.channelMerchant.cardAuthOperationDesc'),
         },
       ],
-  },
-]);
+    },
+  ]);
 
-function getGroupColorClass(color: string) {
-  const map: Record<string, string> = {
-    blue: 'bg-blue-500',
-    green: 'bg-emerald-500',
-  };
-  return map[color] || 'bg-gray-500';
-}
-
-function getIconBgClass(color: string) {
-  const map: Record<string, string> = {
-    blue: 'bg-primary/10 text-primary',
-    green: 'bg-success/10 text-success',
-  };
-  return map[color] || 'bg-muted text-muted-foreground';
-}
-
-/** 初始化（由中转页调用） */
-function init(no: string, mchChannelNo: string, summary: ChannelMerchantResult) {
-  mchNo.value = no;
-  channelMchNo.value = mchChannelNo;
-  channelMerchant.value = summary;
-}
-
-function handleCardClick(card: { key: string }) {
-  if (card.key === 'basicInfo') {
-    basicInfoRef.value?.open();
-    return;
+  function getGroupColorClass(color: string) {
+    const map: Record<string, string> = {
+      blue: 'bg-blue-500',
+      green: 'bg-emerald-500',
+    };
+    return map[color] || 'bg-gray-500';
   }
-  if (card.key === 'authOperation') {
-    // 国际化：功能开发中，敬请期待
-    message.info($t('payment.merchant.channelMerchant.developing'));
-    return;
-  }
-}
 
-defineExpose({ init });
+  function getIconBgClass(color: string) {
+    const map: Record<string, string> = {
+      blue: 'bg-primary/10 text-primary',
+      green: 'bg-success/10 text-success',
+    };
+    return map[color] || 'bg-muted text-muted-foreground';
+  }
+
+  /** 初始化（由中转页调用） */
+  function init(no: string, mchChannelNo: string, summary: ChannelMerchantResult) {
+    mchNo.value = no;
+    channelMchNo.value = mchChannelNo;
+    channelMerchant.value = summary;
+  }
+
+  function handleCardClick(card: { key: string }) {
+    if (card.key === 'basicInfo') {
+      basicInfoRef.value?.open();
+      return;
+    }
+    if (card.key === 'authOperation') {
+      authTokenUpdateRef.value?.open(channelMchNo.value);
+      return;
+    }
+  }
+
+  defineExpose({ init });
 </script>
 
 <template>
@@ -104,7 +104,9 @@ defineExpose({ init });
             >
               <IconifyIcon :icon="card.icon" class="h-7 w-7" />
             </div>
-            <div class="mb-1.5 text-base font-bold text-foreground group-hover:text-primary transition-colors duration-300">
+            <div
+              class="mb-1.5 text-base font-bold text-foreground group-hover:text-primary transition-colors duration-300"
+            >
               {{ card.title }}
             </div>
             <a-tooltip :title="card.description" placement="bottom">
@@ -126,25 +128,27 @@ defineExpose({ init });
       :channel-mch-no="channelMchNo"
       :channel-merchant="channelMerchant"
     />
+
+    <AlipayAppAuthTokenUpdate ref="authTokenUpdateRef" />
   </div>
 </template>
 
 <style scoped>
-.card-grid {
-  display: grid;
-  grid-template-columns: repeat(auto-fill, 220px);
-  gap: 24px;
-  justify-content: center;
-}
+  .card-grid {
+    display: grid;
+    grid-template-columns: repeat(auto-fill, 220px);
+    gap: 24px;
+    justify-content: center;
+  }
 
-.isv-card {
-  max-height: 200px;
-}
+  .isv-card {
+    max-height: 200px;
+  }
 
-.line-clamp-1 {
-  display: -webkit-box;
-  overflow: hidden;
-  -webkit-line-clamp: 1;
-  -webkit-box-orient: vertical;
-}
+  .line-clamp-1 {
+    display: -webkit-box;
+    overflow: hidden;
+    -webkit-line-clamp: 1;
+    -webkit-box-orient: vertical;
+  }
 </style>