diff --git a/src/api/login.js b/src/api/login.js
index e519dba..8302fcd 100644
--- a/src/api/login.js
+++ b/src/api/login.js
@@ -1,5 +1,32 @@
 import request from '@/utils/request'
 
+const permissionInfoCache = new Map()
+const permissionInfoPending = new Map()
+
+function normalizePermissionParams(params = {}) {
+  return {
+    clientType: 2,
+    ...params
+  }
+}
+
+function createPermissionCacheKey(params = {}) {
+  const normalizedParams = normalizePermissionParams(params)
+  return JSON.stringify(
+    Object.keys(normalizedParams)
+      .sort()
+      .reduce((result, key) => {
+        result[key] = normalizedParams[key]
+        return result
+      }, {})
+  )
+}
+
+export function clearPermissionInfoCache() {
+  permissionInfoCache.clear()
+  permissionInfoPending.clear()
+}
+
 // 登录方法
 export function login(username, password, code, uuid, tenantName, captchaVerification,rememberMe) {
   const data = {
@@ -34,14 +61,34 @@ export function register(data) {
 }
 
 function getPermissionInfo(params = {}) {
-  return request({
+  const normalizedParams = normalizePermissionParams(params)
+  const cacheKey = createPermissionCacheKey(normalizedParams)
+
+  if (permissionInfoCache.has(cacheKey)) {
+    return Promise.resolve(permissionInfoCache.get(cacheKey))
+  }
+
+  if (permissionInfoPending.has(cacheKey)) {
+    return permissionInfoPending.get(cacheKey)
+  }
+
+  const requestPromise = request({
     url: '/admin-api/system/auth/get-permission-info',
     method: 'get',
-    params: {
-      clientType: 2,
-      ...params
-    }
+    params: normalizedParams
   })
+
+  const wrappedPromise = requestPromise
+    .then((res) => {
+      permissionInfoCache.set(cacheKey, res)
+      return res
+    })
+    .finally(() => {
+      permissionInfoPending.delete(cacheKey)
+    })
+
+  permissionInfoPending.set(cacheKey, wrappedPromise)
+  return wrappedPromise
 }
 
 // 获取用户详细信息
diff --git a/src/store/modules/user.ts b/src/store/modules/user.ts
index 816e241..1e2430b 100644
--- a/src/store/modules/user.ts
+++ b/src/store/modules/user.ts
@@ -1,4 +1,4 @@
-import { login, logout, getInfo } from "@/api/login";
+import { login, logout, getInfo, clearPermissionInfoCache } from "@/api/login";
 import { getToken, setToken, removeToken } from "@/utils/auth";
 import defAva from "@/static/images/profile.jpg";
 import { defineStore } from "pinia";
@@ -40,6 +40,7 @@ const useUserStore = defineStore("user", {
           .then((res: any) => {
             setToken(res.data.accessToken);
             this.token = res.data.accessToken;
+            clearPermissionInfoCache();
             resolve(null);
           })
           .catch((error) => {
@@ -80,6 +81,7 @@ const useUserStore = defineStore("user", {
       return new Promise<null>((resolve, reject) => {
         logout()
           .then(() => {
+            clearPermissionInfoCache();
             this.token = "";
             this.roles = [];
             this.permissions = [];