diff --git a/src/constants/permissions.ts b/src/constants/permissions.ts
new file mode 100644
index 0000000..2f49df8
--- /dev/null
+++ b/src/constants/permissions.ts
@@ -0,0 +1,82 @@
+/**
+ * 权限常量映射
+ * 根据后端接口权限标识定义前端权限常量
+ */
+
+// 系统管理模块权限
+export const PERMISSIONS = {
+  // 用户管理权限
+  USER: {
+    LIST: 'system:user:list',
+    ADD: 'system:user:add',
+    UPDATE: 'system:user:update',
+    DELETE: 'system:user:delete',
+    RESET_PWD: 'system:user:resetPwd',
+    EXPORT: 'system:user:export',
+    IMPORT: 'system:user:import',
+    ROLE: 'system:user:role', // 分配角色权限
+  },
+
+  // 角色管理权限
+  ROLE: {
+    LIST: 'system:role:list',
+    ADD: 'system:role:add',
+    UPDATE: 'system:role:update',
+    DELETE: 'system:role:delete',
+    MENU: 'system:role:menu', // 分配菜单权限
+  },
+
+  // 菜单管理权限
+  MENU: {
+    LIST: 'system:menu:list',
+    ADD: 'system:menu:add',
+    UPDATE: 'system:menu:update',
+    DELETE: 'system:menu:delete',
+  },
+
+  // 登录日志权限
+  LOGIN_LOG: {
+    LIST: 'system:loginlog:list',
+    ADD: 'system:loginlog:add',
+    UPDATE: 'system:loginlog:update',
+    DELETE: 'system:loginlog:delete',
+  },
+} as const
+
+// 权限类型推断
+export type PermissionType = typeof PERMISSIONS[keyof typeof PERMISSIONS][keyof typeof PERMISSIONS[keyof typeof PERMISSIONS]]
+
+// 常用权限组合
+export const PERMISSION_GROUPS = {
+  // 用户管理相关权限
+  USER_MANAGEMENT: [
+    PERMISSIONS.USER.LIST,
+    PERMISSIONS.USER.ADD,
+    PERMISSIONS.USER.UPDATE,
+    PERMISSIONS.USER.DELETE,
+  ],
+
+  // 角色管理相关权限
+  ROLE_MANAGEMENT: [
+    PERMISSIONS.ROLE.LIST,
+    PERMISSIONS.ROLE.ADD,
+    PERMISSIONS.ROLE.UPDATE,
+    PERMISSIONS.ROLE.DELETE,
+  ],
+
+  // 菜单管理相关权限
+  MENU_MANAGEMENT: [
+    PERMISSIONS.MENU.LIST,
+    PERMISSIONS.MENU.ADD,
+    PERMISSIONS.MENU.UPDATE,
+    PERMISSIONS.MENU.DELETE,
+  ],
+
+  // 系统管理员权限（包含所有权限）
+  SYSTEM_ADMIN: [
+    ...Object.values(PERMISSIONS.USER),
+    ...Object.values(PERMISSIONS.ROLE),
+    ...Object.values(PERMISSIONS.MENU),
+    ...Object.values(PERMISSIONS.LOGIN_LOG),
+  ],
+} as const
diff --git a/src/typings/api/login.d.ts b/src/typings/api/login.d.ts
index f0c9aef..bd3a55d 100644
--- a/src/typings/api/login.d.ts
+++ b/src/typings/api/login.d.ts
@@ -8,6 +8,8 @@ namespace Api {
       id: number
       /** 用户角色类型 */
       role: Entity.RoleType[]
+      /** 用户权限按钮列表 */
+      buttons: string[]
       /** 访问token */
       accessToken: string
       /** 访问token */