diff --git a/server/MiAssessment/src/MiAssessment.Admin/admin-web/src/router/index.ts b/server/MiAssessment/src/MiAssessment.Admin/admin-web/src/router/index.ts
index ab7f8ec..9d8e203 100644
--- a/server/MiAssessment/src/MiAssessment.Admin/admin-web/src/router/index.ts
+++ b/server/MiAssessment/src/MiAssessment.Admin/admin-web/src/router/index.ts
@@ -107,6 +107,26 @@ router.beforeEach(async (to, _from, next) => {
           }
           // 生成动态路由
           const accessRoutes = await permissionStore.generateRoutes()
+          
+          // 如果用户没有任何菜单权限，提示并退出登录
+          if (!accessRoutes || accessRoutes.length === 0) {
+            console.warn('当前用户没有任何菜单权限')
+            dynamicRoutesLoaded = false
+            const { ElMessageBox } = await import('element-plus')
+            const roles = userStore.userInfo?.roles?.join('、') || '无'
+            await ElMessageBox.alert(
+              `当前账号未分配菜单权限，无法进入系统。<br/><br/>` +
+              `<b>账号：</b>${userStore.userInfo?.username}<br/>` +
+              `<b>角色：</b>${roles}<br/><br/>` +
+              `请联系超级管理员，在「系统管理 - 角色管理」中为对应角色分配菜单，或在「管理员管理」中为该账号分配专属菜单。`,
+              '无菜单权限',
+              { dangerouslyUseHTMLString: true, confirmButtonText: '返回登录', type: 'warning' }
+            ).catch(() => {})
+            userStore.resetState()
+            next(`/login?redirect=${to.path}`)
+            return
+          }
+          
           // 添加动态路由
           accessRoutes.forEach(route => {
             router.addRoute(route)
diff --git a/server/MiAssessment/src/MiAssessment.Admin/admin-web/src/views/error/404.vue b/server/MiAssessment/src/MiAssessment.Admin/admin-web/src/views/error/404.vue
index cd4fdc9..f98b926 100644
--- a/server/MiAssessment/src/MiAssessment.Admin/admin-web/src/views/error/404.vue
+++ b/server/MiAssessment/src/MiAssessment.Admin/admin-web/src/views/error/404.vue
@@ -3,19 +3,137 @@
     <div class="error-content">
       <h1>404</h1>
       <p>抱歉，您访问的页面不存在</p>
-      <el-button type="primary" @click="goHome">返回首页</el-button>
+
+      <!-- 权限提示信息 -->
+      <div v-if="permissionInfo.show" class="permission-info">
+        <el-alert type="warning" :closable="false" show-icon>
+          <template #title>
+            <span>当前账号缺少访问该页面的菜单权限</span>
+          </template>
+          <template #default>
+            <div class="info-detail">
+              <p><span class="label">访问路径：</span>{{ permissionInfo.path }}</p>
+              <p><span class="label">所需菜单：</span>{{ permissionInfo.menuName || '未知' }}</p>
+              <p v-if="permissionInfo.permission"><span class="label">权限标识：</span>{{ permissionInfo.permission }}</p>
+              <p><span class="label">当前账号：</span>{{ permissionInfo.username }}</p>
+              <p><span class="label">当前角色：</span>{{ permissionInfo.roles }}</p>
+              <p class="tip">请联系超级管理员，在「角色管理」中为对应角色分配菜单，或在「管理员管理」中分配专属菜单。</p>
+            </div>
+          </template>
+        </el-alert>
+      </div>
+
+      <div class="error-actions">
+        <el-button type="primary" @click="goHome">返回首页</el-button>
+        <el-button @click="handleLogout">退出登录</el-button>
+      </div>
     </div>
   </div>
 </template>
 
 <script setup lang="ts">
-import { useRouter } from 'vue-router'
+import { reactive, onMounted } from 'vue'
+import { useRouter, useRoute } from 'vue-router'
+import { useUserStore } from '@/store/modules/user'
+import { usePermissionStore } from '@/store/modules/permission'
 
 const router = useRouter()
+const route = useRoute()
+const userStore = useUserStore()
+const permissionStore = usePermissionStore()
+
+/**
+ * 已知路径与菜单名称的映射表
+ */
+const pathMenuMap: Record<string, { name: string; permission?: string }> = {
+  '/dashboard': { name: '数据统计' },
+  '/system': { name: '系统管理' },
+  '/system/admin': { name: '系统管理 > 管理员管理', permission: 'system:admin:view' },
+  '/system/role': { name: '系统管理 > 角色管理', permission: 'system:role:view' },
+  '/system/menu': { name: '系统管理 > 菜单管理', permission: 'system:menu:view' },
+  '/system/dept': { name: '系统管理 > 部门管理', permission: 'system:dept:view' },
+  '/system/dict': { name: '系统管理 > 字典管理', permission: 'system:dict:view' },
+  '/system/log': { name: '系统管理 > 操作日志', permission: 'system:log:view' },
+  '/system/config': { name: '系统管理 > 系统配置', permission: 'system:config:view' },
+  '/user': { name: '用户管理' },
+  '/user/list': { name: '用户管理 > 用户列表', permission: 'user:view' },
+  '/assessment': { name: '测评管理' },
+  '/assessment/type': { name: '测评管理 > 测评类型', permission: 'assessment:view' },
+  '/assessment/question': { name: '测评管理 > 题库管理', permission: 'question:view' },
+  '/assessment/category': { name: '测评管理 > 报告分类', permission: 'category:view' },
+  '/assessment/conclusion': { name: '测评管理 > 报告结论', permission: 'conclusion:view' },
+  '/assessment/scoreOption': { name: '测评管理 > 评分标准', permission: 'assessment:view' },
+  '/assessment/record': { name: '测评管理 > 测评记录', permission: 'assessmentRecord:view' },
+  '/assessment/report-page-config': { name: '测评管理 > 报告页面配置', permission: 'assessment:view' },
+  '/order': { name: '订单管理' },
+  '/order/list': { name: '订单管理 > 订单列表', permission: 'order:view' },
+  '/planner': { name: '规划师管理' },
+  '/planner/list': { name: '规划师管理 > 规划师列表', permission: 'planner:view' },
+  '/planner/booking': { name: '规划师管理 > 预约记录', permission: 'booking:view' },
+  '/distribution': { name: '分销管理' },
+  '/distribution/invite-code': { name: '分销管理 > 邀请码管理', permission: 'inviteCode:view' },
+  '/distribution/commission': { name: '分销管理 > 佣金记录', permission: 'commission:view' },
+  '/distribution/withdrawal': { name: '分销管理 > 提现管理', permission: 'withdrawal:view' },
+  '/content': { name: '内容管理' },
+  '/content/banner': { name: '内容管理 > 轮播图管理', permission: 'banner:view' },
+  '/content/promotion': { name: '内容管理 > 宣传图管理', permission: 'promotion:view' },
+  '/content/business-page': { name: '内容管理 > 业务介绍页', permission: 'businessPage:view' },
+  '/content/navigation': { name: '内容管理 > 首页导航管理', permission: 'content:view' },
+}
+
+const permissionInfo = reactive({
+  show: false,
+  path: '',
+  menuName: '',
+  permission: '',
+  username: '',
+  roles: ''
+})
+
+/**
+ * 尝试从后端菜单数据中查找路径对应的菜单名称
+ */
+function findMenuNameFromStore(path: string): string | null {
+  const menus = permissionStore.menus
+  if (!menus || menus.length === 0) return null
+
+  function search(items: any[]): string | null {
+    for (const item of items) {
+      if (item.path === path) return item.name
+      if (item.children?.length) {
+        const found = search(item.children)
+        if (found) return found
+      }
+    }
+    return null
+  }
+  return search(menus)
+}
+
+onMounted(() => {
+  // 获取原始访问路径（从 query.redirect 或 referrer 中推断）
+  const originalPath = (route.query.redirect as string) || route.redirectedFrom?.path || ''
+
+  if (originalPath && originalPath !== '/404' && userStore.userInfo) {
+    const mapped = pathMenuMap[originalPath]
+    const storeMenuName = findMenuNameFromStore(originalPath)
+
+    permissionInfo.show = true
+    permissionInfo.path = originalPath
+    permissionInfo.menuName = storeMenuName || mapped?.name || originalPath
+    permissionInfo.permission = mapped?.permission || ''
+    permissionInfo.username = userStore.userInfo.username || ''
+    permissionInfo.roles = userStore.userInfo.roles?.join('、') || '无'
+  }
+})
 
 const goHome = () => {
   router.push('/')
 }
+
+const handleLogout = async () => {
+  await userStore.logout()
+}
 </script>
 
 <style scoped>
@@ -29,6 +147,9 @@ const goHome = () => {
 
 .error-content {
   text-align: center;
+  max-width: 560px;
+  width: 100%;
+  padding: 0 20px;
 }
 
 .error-content h1 {
@@ -40,6 +161,36 @@ const goHome = () => {
 .error-content p {
   font-size: 18px;
   color: #606266;
-  margin: 20px 0 30px;
+  margin: 20px 0 20px;
+}
+
+.permission-info {
+  margin-bottom: 24px;
+  text-align: left;
+}
+
+.info-detail p {
+  margin: 6px 0;
+  font-size: 13px;
+  color: #606266;
+  line-height: 1.6;
+}
+
+.info-detail .label {
+  color: #909399;
+  display: inline-block;
+  min-width: 80px;
+}
+
+.info-detail .tip {
+  margin-top: 12px;
+  color: #e6a23c;
+  font-size: 12px;
+}
+
+.error-actions {
+  display: flex;
+  gap: 12px;
+  justify-content: center;
 }
 </style>