diff --git a/backend/controller/menu.py b/backend/controller/menu.py
index 8d913d0..b97ec60 100644
--- a/backend/controller/menu.py
+++ b/backend/controller/menu.py
@@ -28,4 +28,3 @@ async def menu_put(pk: int, data: MenuIn) -> Response:
     if await put_menu(pk, data) == 0:
         return Response(code=400, msg="菜单不存在")
     return Response()
-
diff --git a/backend/controller/role.py b/backend/controller/role.py
index 6579935..d9e1222 100644
--- a/backend/controller/role.py
+++ b/backend/controller/role.py
@@ -4,10 +4,15 @@ from fastapi import Query
 
 from core.utils import list_to_tree
 from dbhelper.relation import role_assigned_menu
-from dbhelper.role import (del_role, get_role, get_role_menus, get_roles,
-                           new_role, put_role)
-from schemas import (ListAll, Response, RoleIn, RoleInfo, RoleMenuIn,
-                     RoleQuery, RoleRead)
+from dbhelper.role import (
+    del_role,
+    get_role,
+    get_role_menus,
+    get_roles,
+    new_role,
+    put_role,
+)
+from schemas import ListAll, Response, RoleIn, RoleInfo, RoleMenuIn, RoleQuery, RoleRead
 
 
 async def role_add(data: RoleIn) -> Response[RoleInfo]:
diff --git a/backend/controller/user.py b/backend/controller/user.py
index 81e9647..4d51ed4 100644
--- a/backend/controller/user.py
+++ b/backend/controller/user.py
@@ -1,8 +1,16 @@
-from fastapi import Query
+from fastapi import Depends, Query
+from starlette.requests import Request
 
-from core.security import get_password_hash
-from dbhelper.user import (del_user, get_user, get_user_info, get_users,
-                           insert_user, put_user)
+from core.security import check_token, get_password_hash
+from dbhelper.user import (
+    del_user,
+    get_user,
+    get_user_info,
+    get_users,
+    insert_user,
+    put_user,
+    select_role,
+)
 from schemas import Response, UserAdd, UserInfo, UserPut, UserQuery, UserRead
 from schemas.common import ListAll
 
@@ -63,3 +71,11 @@ async def user_put(pk: int, data: UserPut) -> Response:
     if isinstance(result, int):
         return Response(code=400, msg=f"角色不存在{result}")
     return Response()
+
+
+async def user_select_role(rid: int, user=Depends(check_token)):
+    """用户切换角色"""
+    res = await select_role(user.id, rid)
+    if res == 0:
+        return Response(code=400, msg=f"角色不存在{res}")
+    return Response()
diff --git a/backend/core/security.py b/backend/core/security.py
index c178d0d..8492817 100644
--- a/backend/core/security.py
+++ b/backend/core/security.py
@@ -74,7 +74,7 @@ async def check_permissions(request: Request, user: UserModel = Depends(check_to
     whitelist = [f"/user/{user.id}", f"/role/{active_rid}/menu"]
     flag = request.url.path in whitelist and request.method == "GET"
     if flag:
-        return
+        return user
 
     api = request.url.path
     for k, v in request.path_params.items():
diff --git a/backend/dbhelper/menu.py b/backend/dbhelper/menu.py
index 26256d1..b59c069 100644
--- a/backend/dbhelper/menu.py
+++ b/backend/dbhelper/menu.py
@@ -71,4 +71,4 @@ async def get_apis(pk: int):
 
 async def put_menu(pk: int, data):
     """更新菜单"""
-    return await MenuModel.filter(id=pk).update(**data.dict())
\ No newline at end of file
+    return await MenuModel.filter(id=pk).update(**data.dict())
diff --git a/backend/dbhelper/user.py b/backend/dbhelper/user.py
index 708adff..ea1da61 100644
--- a/backend/dbhelper/user.py
+++ b/backend/dbhelper/user.py
@@ -104,3 +104,9 @@ async def put_user(uid: int, data: UserPut):
     await UserRoleModel.bulk_create(
         [UserRoleModel(uid=uid, **role.dict()) for role in roles]
     )
+
+
+async def select_role(uid: int, rid: int):
+    """用户切换角色"""
+    await UserRoleModel.filter(uid=uid, rid__not=rid).update(status=1)
+    return await UserRoleModel.filter(uid=uid, rid=rid).update(status=5)
diff --git a/backend/mini.db-shm b/backend/mini.db-shm
deleted file mode 100644
index cd21bd9..0000000
Binary files a/backend/mini.db-shm and /dev/null differ
diff --git a/backend/mini.db-wal b/backend/mini.db-wal
deleted file mode 100644
index 2f38425..0000000
Binary files a/backend/mini.db-wal and /dev/null differ
diff --git a/backend/router/url.py b/backend/router/url.py
index f146478..29111c0 100644
--- a/backend/router/url.py
+++ b/backend/router/url.py
@@ -4,10 +4,24 @@ from fastapi import Depends, routing
 
 from controller.common import about, login
 from controller.menu import menu_add, menu_arr, menu_del, menu_put
-from controller.role import (assigned_menu, role_add, role_arr, role_del,
-                             role_has_menu, role_put, role_query)
-from controller.user import (user_add, user_arr, user_del, user_info,
-                             user_list, user_put)
+from controller.role import (
+    assigned_menu,
+    role_add,
+    role_arr,
+    role_del,
+    role_has_menu,
+    role_put,
+    role_query,
+)
+from controller.user import (
+    user_add,
+    user_arr,
+    user_del,
+    user_info,
+    user_list,
+    user_put,
+    user_select_role,
+)
 from core.security import check_permissions
 
 
@@ -107,9 +121,7 @@ class Route(routing.APIRoute):
         )
 
 
-has_perm = {
-    # "dependencies": [Depends(check_permissions)]
-}
+has_perm = {"dependencies": [Depends(check_permissions)]}
 
 routes = [
     Route.post("/login", endpoint=login, tags=["公共"], summary="登录"),
@@ -129,6 +141,9 @@ routes = [
     Route.post(
         "/user/query", endpoint=user_list, tags=["用户管理"], summary="用户列表查询", **has_perm
     ),
+    Route.put(
+        "/user/role/{rid}", endpoint=user_select_role, tags=["用户管理"], summary="用户切换角色"
+    ),
     # 角色管理,
     Route.get("/role", endpoint=role_arr, tags=["角色管理"], summary="角色列表", **has_perm),
     Route.post("/role", endpoint=role_add, tags=["角色管理"], summary="角色新增", **has_perm),
diff --git a/backend/tests/test_case.py b/backend/tests/test_case.py
index b676cb2..4d708a7 100644
--- a/backend/tests/test_case.py
+++ b/backend/tests/test_case.py
@@ -309,20 +309,6 @@ params = [
             method="DELETE",
         ).dict(),
     ),
-    (
-        "/menu",
-        MenuIn(
-            name="修改菜单",
-            meta={"icon": "Update"},
-            path=None,
-            type=2,
-            component=None,
-            pid=5,
-            identifier="menu:update",
-            api="/menu/{pk}",
-            method="PUT",
-        ).dict(),
-    ),
     # 分配权限
     (
         "/role/assigned/menu",
diff --git a/frontend/src/components/layout/layout-header.vue b/frontend/src/components/layout/layout-header.vue
new file mode 100644
index 0000000..fbd00c6
--- /dev/null
+++ b/frontend/src/components/layout/layout-header.vue
@@ -0,0 +1,42 @@
+<script setup>
+import { ref } from "vue";
+import UserInfo from "@/components/layout/layout-info/layout-info.vue";
+import { MenuUnfoldOutlined, MenuFoldOutlined } from "@ant-design/icons-vue";
+
+// 记录图标状态
+const collapsed = ref(false);
+
+const emits = defineEmits(["changeFold"]);
+
+// 修改图标状态同时传递参数给父组件让其变更菜单收缩
+const clickMenuFold = () => {
+  collapsed.value = !collapsed.value;
+  // 父组件需要绑定这个事件
+  emits("changeFold", collapsed.value);
+};
+</script>
+
+<template>
+  <div class="header">
+    <menu-unfold-outlined
+      v-if="collapsed"
+      class="trigger"
+      @click="clickMenuFold"
+    />
+    <menu-fold-outlined v-else class="trigger" @click="clickMenuFold" />
+    <UserInfo />
+  </div>
+</template>
+
+<style scoped>
+.trigger {
+  margin-left: 16px;
+  font-size: 24px;
+}
+
+.right {
+  float: right;
+  margin-right: 16px;
+  font-size: 16px;
+}
+</style>
diff --git a/frontend/src/components/layout/layout-info/layout-info.vue b/frontend/src/components/layout/layout-info/layout-info.vue
new file mode 100644
index 0000000..a2bec66
--- /dev/null
+++ b/frontend/src/components/layout/layout-info/layout-info.vue
@@ -0,0 +1,41 @@
+<script setup>
+import { ref } from "vue";
+import { useRouter } from "vue-router";
+import { userStore } from "@/stores/user";
+
+import SelectRole from "./select-role.vue";
+
+const store = userStore();
+const router = useRouter();
+
+const roleChangeRef = ref();
+
+const onClick = ({ key }) => {
+  if (key === "1") {
+    // 点击切换角色
+    roleChangeRef.value?.showModal();
+  } else {
+    store.$reset();
+    router.push("/login");
+  }
+};
+</script>
+
+<template>
+  <div class="right">
+    <a-dropdown>
+      <a class="ant-dropdown-link" @click.prevent>
+        {{ store.userInfo.nickname }} - {{ store.userInfo.roles[0].name }}
+      </a>
+      <template #overlay>
+        <a-menu @click="onClick">
+          <a-menu-item key="1">切换角色</a-menu-item>
+          <a-menu-item key="2">退出登录</a-menu-item>
+        </a-menu>
+      </template>
+    </a-dropdown>
+    <SelectRole ref="roleChangeRef" />
+  </div>
+</template>
+
+<style scoped></style>
diff --git a/frontend/src/components/layout/layout-info/select-role.vue b/frontend/src/components/layout/layout-info/select-role.vue
new file mode 100644
index 0000000..6b418f2
--- /dev/null
+++ b/frontend/src/components/layout/layout-info/select-role.vue
@@ -0,0 +1,69 @@
+<script setup>
+import { ref, computed } from "vue";
+import { userStore } from "@/stores/user";
+
+const store = userStore();
+
+const loading = ref(false);
+const visible = ref(false);
+
+const currentRoleId = ref(store.userInfo.roles[0].id);
+
+// 角色列表选项
+const options = computed(() => {
+  return store.userInfo.roles.map((role) => ({
+    label: role.name,
+    value: role.id,
+  }));
+});
+
+const showModal = () => {
+  visible.value = true;
+};
+
+const handleOk = () => {
+  loading.value = true;
+  store.userSelectRole(currentRoleId.value);
+  setTimeout(() => {
+    loading.value = false;
+    visible.value = false;
+  }, 1000);
+};
+
+const handleCancel = () => {
+  visible.value = false;
+};
+
+defineExpose({
+  showModal,
+});
+</script>
+
+<template>
+  <div class="select-role">
+    <a-modal v-model:visible="visible" title="切换角色" @ok="handleOk">
+      <template #footer>
+        <a-button key="back" @click="handleCancel">取消</a-button>
+        <a-button
+          key="submit"
+          type="primary"
+          :loading="loading"
+          @click="handleOk"
+          >确定</a-button
+        >
+      </template>
+      <span>选择角色：</span>
+
+      <a-space direction="vertical">
+        <a-select
+          v-model:value="currentRoleId"
+          size="default"
+          style="width: 400px"
+          :options="options"
+        ></a-select>
+      </a-space>
+    </a-modal>
+  </div>
+</template>
+
+<style scoped></style>
diff --git a/frontend/src/router/index.js b/frontend/src/router/index.js
index e2f563c..f6a53aa 100644
--- a/frontend/src/router/index.js
+++ b/frontend/src/router/index.js
@@ -1,7 +1,6 @@
 import { createRouter, createWebHistory } from "vue-router";
 import { message } from "ant-design-vue";
 import { userStore } from "@/stores/user";
-import { loadRouter } from "@/utils/loadCpn";
 
 const routes = [
   {
diff --git a/frontend/src/service/user.js b/frontend/src/service/user.js
index 435d494..73ae873 100644
--- a/frontend/src/service/user.js
+++ b/frontend/src/service/user.js
@@ -21,3 +21,11 @@ export function getMenus(rid) {
     url: `/role/${rid}/menu`,
   });
 }
+
+// 修改用户信息
+export function selectRole(rid) {
+  return request({
+    url: `/user/role/${rid}`,
+    method: "put",
+  });
+}
diff --git a/frontend/src/stores/user.js b/frontend/src/stores/user.js
index 3ed7110..0744bdc 100644
--- a/frontend/src/stores/user.js
+++ b/frontend/src/stores/user.js
@@ -4,7 +4,7 @@ import { message } from "ant-design-vue";
 
 import router from "@/router";
 import { loadRouter, loadDefaultMenu } from "@/utils/loadCpn";
-import { getMenus, getUserInfo, login } from "@/service/user";
+import { getMenus, getUserInfo, login, selectRole } from "@/service/user";
 
 export const userStore = defineStore(
   "user",
@@ -28,14 +28,13 @@ export const userStore = defineStore(
       userMenus.value = [];
     };
 
-    // 非setup语法时的actions
-    const loginAction = async (data) => {
-      // 1. 登录
-      const res = await login(data);
-      token.value = res.data.token;
-
+    /**
+     * 获取用户信息 & 菜单路由
+     * @param {*} uid 用户id
+     */
+    const getUserData = async (uid) => {
       // 2. 获取用户信息
-      const info = await getUserInfo(res.data.id);
+      const info = await getUserInfo(uid);
       userInfo.value = info.data;
 
       // 3. 获取权限信息
@@ -55,7 +54,13 @@ export const userStore = defineStore(
       } else {
         router.push("/main");
       }
+    };
 
+    const loginAction = async (data) => {
+      // 1. 登录
+      const res = await login(data);
+      token.value = res.data.token;
+      await getUserData(res.data.id);
       // 弹框提示登录成功
       message.success("登录成功.");
     };
@@ -65,6 +70,13 @@ export const userStore = defineStore(
       loadRouter(userMenus.value);
     };
 
+    // 切换角色
+    const userSelectRole = async (rid) => {
+      await selectRole(rid);
+      // 重新拿用户信息
+      await getUserData(userInfo.value.id);
+    };
+
     return {
       token,
       accessToken,
@@ -75,6 +87,7 @@ export const userStore = defineStore(
       $reset,
       loginAction,
       loadRoleRouter,
+      userSelectRole,
     };
   },
   {
diff --git a/frontend/src/utils/request.js b/frontend/src/utils/request.js
index a6e2283..a633c95 100644
--- a/frontend/src/utils/request.js
+++ b/frontend/src/utils/request.js
@@ -25,7 +25,15 @@ export default (config) => {
     },
     (err) => {
       userStore().isLoading = !userStore().isLoading;
-      message.error(err);
+      if (err.response.data?.msg) {
+        message.error(err.response.data.msg);
+      } else if (err.response.data?.detail) {
+        // 请求参数缺失
+        message.error(err.response.data?.detail[0].msg);
+      } else {
+        message.error(err.message);
+      }
+
       return Promise.reject(err);
     }
   );
diff --git a/frontend/src/views/main/main.vue b/frontend/src/views/main/main.vue
index 714380a..9c6f5bf 100644
--- a/frontend/src/views/main/main.vue
+++ b/frontend/src/views/main/main.vue
@@ -1,17 +1,15 @@
 <script setup>
 import { ref } from "vue";
-import router from "@/router";
-
-import { userStore } from "@/stores/user";
 
 import SiderMenu from "@/components/layout/sider-menu.vue";
-const store = userStore();
+import LayoutHeader from "@/components/layout/layout-header.vue";
 
+// a-ayout-sider 折叠状态响应式数据
 const collapsed = ref(false);
 
-const logout = () => {
-  store.$reset();
-  router.push("/login");
+// header组件 折叠按钮事件 触发a-layout-sider折叠
+const changeSiderFold = (subValue) => {
+  collapsed.value = subValue;
 };
 </script>
 
@@ -25,7 +23,7 @@ const logout = () => {
       <a-layout>
         <a-layout-header style="background: #fff; padding: 0">
           <!-- 页头 -->
-          <a-button @click="logout">退出</a-button>
+          <LayoutHeader @changeFold="changeSiderFold" />
         </a-layout-header>
         <!-- 面包屑 -->
         <a-layout-content