diff --git a/functions/api/user/info.ts b/functions/api/user/info.ts
index e7de286..93723a6 100644
--- a/functions/api/user/info.ts
+++ b/functions/api/user/info.ts
@@ -28,6 +28,8 @@ export const onRequestGet: PagesFunction<Env> = async (context) => {
                 }
             );
         }
+        //处理avatar_url
+        userInfo.avatar_url = `${env.NEXT_PUBLIC_CF_IMAGES_DELIVERY_URL}/${userInfo.avatar_url}/public`;
 
         return new Response(
             JSON.stringify({ 
diff --git a/functions/api/user/update.ts b/functions/api/user/update.ts
index e82b28c..9f8447d 100644
--- a/functions/api/user/update.ts
+++ b/functions/api/user/update.ts
@@ -8,32 +8,48 @@ export const onRequestPost: PagesFunction<Env> = async (context) => {
         
         // 解析请求体
         const body = await request.json();
-        const { nickname } = body;
+        const { nickname, avatar_url } = body;
 
-        // 验证昵称
-        if (!nickname || typeof nickname !== 'string' || nickname.length > 32) {
-            return new Response(
-                JSON.stringify({ 
-                    success: false, 
-                    message: '昵称格式不正确' 
-                }), 
-                {
-                    status: 400,
-                    headers: {
-                        'Content-Type': 'application/json',
-                    },
-                }
-            );
+        // 构建 SQL 更新语句和参数
+        let sql = 'UPDATE users SET updated_at = DATETIME(\'now\')';
+        const params = [];
+
+        // 如果有昵称更新
+        if (nickname !== undefined) {
+            if (typeof nickname !== 'string' || nickname.length > 32) {
+                return new Response(
+                    JSON.stringify({ 
+                        success: false, 
+                        message: '昵称格式不正确' 
+                    }), 
+                    { status: 400, headers: { 'Content-Type': 'application/json' } }
+                );
+            }
+            sql += ', nickname = ?';
+            params.push(nickname);
         }
 
-        // 更新数据库中的昵称
-        const db = env.bgdb;
-        const result = await db.prepare(`
-            UPDATE users 
-            SET nickname = ?, 
-                updated_at = DATETIME('now')
-            WHERE id = ?
-        `).bind(nickname, data.user.userId).run();
+        // 如果有头像更新
+        if (avatar_url !== undefined) {
+            if (typeof avatar_url !== 'string') {
+                return new Response(
+                    JSON.stringify({ 
+                        success: false, 
+                        message: '头像URL格式不正确' 
+                    }), 
+                    { status: 400, headers: { 'Content-Type': 'application/json' } }
+                );
+            }
+            sql += ', avatar_url = ?';
+            params.push(avatar_url);
+        }
+
+        // 添加 WHERE 条件
+        sql += ' WHERE id = ?';
+        params.push(data.user.userId);
+
+        // 执行更新
+        const result = await env.bgdb.prepare(sql).bind(...params).run();
 
         if (!result.success) {
             return new Response(
@@ -51,12 +67,13 @@ export const onRequestPost: PagesFunction<Env> = async (context) => {
         }
 
         // 获取更新后的用户信息
-        const userInfo = await db.prepare(`
+        const userInfo = await env.bgdb.prepare(`
             SELECT id, phone, nickname, avatar_url, status
             FROM users 
             WHERE id = ?
         `).bind(data.user.userId).first();
-
+        //处理avatar_url
+        userInfo.avatar_url = `${env.NEXT_PUBLIC_CF_IMAGES_DELIVERY_URL}/${userInfo.avatar_url}/public`;
         return new Response(
             JSON.stringify({ 
                 success: true, 
diff --git a/package-lock.json b/package-lock.json
index becc9b4..72549f6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -40,7 +40,8 @@
         "tailwind-merge": "^2.6.0",
         "tailwind-scrollbar-hide": "^2.0.0",
         "tailwindcss-animate": "^1.0.7",
-        "wrangler": "^3.112.0"
+        "wrangler": "^3.112.0",
+        "zustand": "^5.0.3"
       },
       "devDependencies": {
         "@shadcn/ui": "^0.0.4",
@@ -8158,6 +8159,34 @@
         "url": "https://github.com/sponsors/colinhacks"
       }
     },
+    "node_modules/zustand": {
+      "version": "5.0.3",
+      "resolved": "https://registry.npmmirror.com/zustand/-/zustand-5.0.3.tgz",
+      "integrity": "sha512-14fwWQtU3pH4dE0dOpdMiWjddcH+QzKIgk1cl8epwSE7yag43k/AD/m4L6+K7DytAOr9gGBe3/EXj9g7cdostg==",
+      "engines": {
+        "node": ">=12.20.0"
+      },
+      "peerDependencies": {
+        "@types/react": ">=18.0.0",
+        "immer": ">=9.0.6",
+        "react": ">=18.0.0",
+        "use-sync-external-store": ">=1.2.0"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "immer": {
+          "optional": true
+        },
+        "react": {
+          "optional": true
+        },
+        "use-sync-external-store": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/zwitch": {
       "version": "2.0.4",
       "resolved": "https://registry.npmmirror.com/zwitch/-/zwitch-2.0.4.tgz",
diff --git a/package.json b/package.json
index bb6a51a..7ab24b1 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,8 @@
     "tailwind-merge": "^2.6.0",
     "tailwind-scrollbar-hide": "^2.0.0",
     "tailwindcss-animate": "^1.0.7",
-    "wrangler": "^3.112.0"
+    "wrangler": "^3.112.0",
+    "zustand": "^5.0.3"
   },
   "devDependencies": {
     "@shadcn/ui": "^0.0.4",
diff --git a/src/pages/chat/components/ChatUI.tsx b/src/pages/chat/components/ChatUI.tsx
index 9b2206a..7e3fb55 100644
--- a/src/pages/chat/components/ChatUI.tsx
+++ b/src/pages/chat/components/ChatUI.tsx
@@ -21,6 +21,7 @@ import { SharePoster } from '@/pages/chat/components/SharePoster';
 import { MembersManagement } from '@/pages/chat/components/MembersManagement';
 import Sidebar from './Sidebar';
 import { AdBanner, AdBannerMobile } from './AdSection';
+import { useUserStore } from '@/store/userStore';
 // 使用本地头像数据，避免外部依赖
 const getAvatarData = (name: string) => {
   const colors = ['#1abc9c', '#3498db', '#9b59b6', '#f1c40f', '#e67e22'];
@@ -139,6 +140,8 @@ const KaTeXStyle = () => (
 
 
 const ChatUI = () => {
+  const userStore = useUserStore();
+
   //获取url参数
   const urlParams = new URLSearchParams(window.location.search);
   const id = urlParams.get('id')? parseInt(urlParams.get('id')!) : 0;
@@ -202,8 +205,14 @@ const ChatUI = () => {
         const allNames = groupAiCharacters.map(character => character.name);
         allNames.push('user');
         setAllNames(allNames);
+
+        const response1 = await request('/api/user/info');
+        const userInfo = await response1.json();
+        //设置store
+        userStore.setUserInfo(userInfo.data);
+
         setUsers([
-          { id: 1, name: "我" },
+          { id: 1, name: userInfo.data.nickname, avatar: userInfo.data.avatar_url },
           ...groupAiCharacters
         ]);
       } catch (error) {
@@ -215,7 +224,7 @@ const ChatUI = () => {
     initData();
     // 标记为已初始化
     isInitialized.current = true;
-  }, []); // 依赖数组保持为空
+  }, [userStore]);
 
   useEffect(() => {
     scrollToBottom();
@@ -235,6 +244,16 @@ const ChatUI = () => {
     };
   }, []);
 
+  // 添加一个新的 useEffect 来监听 userStore.userInfo 的变化
+  useEffect(() => {
+    if (userStore.userInfo && users.length > 0) {
+      setUsers(prev => [
+        { id: 1, name: userStore.userInfo.nickname, avatar: userStore.userInfo.avatar_url? userStore.userInfo.avatar_url : null },
+        ...prev.slice(1) // 保留其他 AI 角色
+      ]);
+    }
+  }, [userStore.userInfo]); // 当 userInfo 变化时更新 users
+
   // 4. 工具函数
   const scrollToBottom = () => {
     messagesEndRef.current?.scrollIntoView({ behavior: "smooth" });
@@ -290,7 +309,7 @@ const ChatUI = () => {
     // 构建历史消息数组
     let messageHistory = messages.map(msg => ({
       role: 'user',
-      content: msg.sender.name == "我" ? 'user：' + msg.content :  msg.sender.name + '：' + msg.content,
+      content: msg.sender.name == userStore.userInfo.nickname ? 'user：' + msg.content :  msg.sender.name + '：' + msg.content,
       name: msg.sender.name
     }));
     let selectedGroupAiCharacters = groupAiCharacters;
@@ -464,34 +483,6 @@ const ChatUI = () => {
     //进行跳转到?id=index
     window.location.href = `?id=${index}`;
     return;
-    /*
-    //跳转后，关闭当前页面
-    setSelectedGroupIndex(index);
-    const newGroup = groups[index];
-    setGroup(newGroup);
-    
-    // 重新生成当前群组的 AI 角色，并按照 members 数组的顺序排序
-    const newGroupAiCharacters = generateAICharacters(newGroup.name)
-      .filter(character => newGroup.members.includes(character.id))
-      .sort((a, b) => {
-        return newGroup.members.indexOf(a.id) - newGroup.members.indexOf(b.id);
-      });
-    
-    // 更新用户列表
-    setUsers([
-      { id: 1, name: "我" },
-      ...newGroupAiCharacters
-    ]);
-    setIsGroupDiscussionMode(newGroup.isGroupDiscussionMode);
-    
-    // 重置消息
-    setMessages([]);
-    
-    // 可选：关闭侧边栏（在移动设备上）
-    if (window.innerWidth < 768) {
-      setSidebarOpen(false);
-    }
-    */
   };
 
   return (
@@ -579,8 +570,8 @@ const ChatUI = () => {
                 <div className="space-y-4">
                   {messages.map((message) => (
                     <div key={message.id} 
-                      className={`flex items-start gap-2 ${message.sender.name === "我" ? "justify-end" : ""}`}>
-                      {message.sender.name !== "我" && (
+                      className={`flex items-start gap-2 ${message.sender.name === userStore.userInfo.nickname ? "justify-end" : ""}`}>
+                      {message.sender.name !== userStore.userInfo.nickname && (
                         <Avatar>
                           {'avatar' in message.sender && message.sender.avatar ? (
                             <AvatarImage src={message.sender.avatar} className="w-10 h-10" />
@@ -591,16 +582,16 @@ const ChatUI = () => {
                           )}
                         </Avatar>
                       )}
-                      <div className={message.sender.name === "我" ? "text-right" : ""}>
+                      <div className={message.sender.name === userStore.userInfo.nickname ? "text-right" : ""}>
                         <div className="text-sm text-gray-500">{message.sender.name}</div>
                         <div className={`mt-1 p-3 rounded-lg shadow-sm chat-message ${
-                          message.sender.name === "我" ? "bg-blue-500 text-white text-left" : "bg-white"
+                          message.sender.name === userStore.userInfo.nickname ? "bg-blue-500 text-white text-left" : "bg-white"
                         }`}>
                           <ReactMarkdown 
                             remarkPlugins={[remarkGfm, remarkMath]}
                             rehypePlugins={[rehypeKatex]}
                             className={`prose dark:prose-invert max-w-none ${
-                              message.sender.name === "我" ? "text-white [&_*]:text-white" : ""
+                              message.sender.name === userStore.userInfo.nickname ? "text-white [&_*]:text-white" : ""
                             }
                             [&_h2]:py-1
                             [&_h2]:m-0
@@ -638,7 +629,7 @@ const ChatUI = () => {
                           )}
                         </div>
                       </div>
-                      {message.sender.name === "我" && (
+                      {message.sender.name === userStore.userInfo.nickname && (
                         <Avatar>
                          {'avatar' in message.sender && message.sender.avatar ? (
                             <AvatarImage src={message.sender.avatar} className="w-10 h-10" />
diff --git a/src/pages/chat/components/Sidebar.tsx b/src/pages/chat/components/Sidebar.tsx
index e054bf5..887bc46 100644
--- a/src/pages/chat/components/Sidebar.tsx
+++ b/src/pages/chat/components/Sidebar.tsx
@@ -4,7 +4,6 @@ import { MessageSquareIcon, PlusCircleIcon, MenuIcon, PanelLeftCloseIcon } from
 import { cn } from "@/lib/utils";
 import GitHubButton from 'react-github-btn';
 import '@fontsource/audiowide';
-//import { groups } from "@/config/groups";
 import { AdSection } from './AdSection';
 import { UserSection } from './UserSection';
 import { 
diff --git a/src/pages/chat/components/UserSection.tsx b/src/pages/chat/components/UserSection.tsx
index d14fa1c..08f6cd2 100644
--- a/src/pages/chat/components/UserSection.tsx
+++ b/src/pages/chat/components/UserSection.tsx
@@ -1,7 +1,9 @@
-import React, { useState, useEffect } from 'react';
+import React, { useState, useEffect, useRef } from 'react';
 import { cn } from "@/lib/utils";
 import { Edit2Icon, LogOutIcon, CheckIcon, XIcon } from 'lucide-react';
 import { request } from '@/utils/request';
+import { useUserStore } from '@/store/userStore';
+
 
 interface UserSectionProps {
   isOpen: boolean;
@@ -15,30 +17,12 @@ interface UserInfo {
 
 export const UserSection: React.FC<UserSectionProps> = ({ isOpen }) => {
   const [isHovering, setIsHovering] = useState(false);
-  const [userInfo, setUserInfo] = useState<UserInfo | null>(null);
   const [isLoading, setIsLoading] = useState(false);
   const [isEditing, setIsEditing] = useState(false);
   const [newNickname, setNewNickname] = useState('');
-
-  useEffect(() => {
-    const fetchUserInfo = async () => {
-      if (!isOpen) return;
-      
-      try {
-        setIsLoading(true);
-        const response = await request('/api/user/info');
-        const { data } = await response.json();
-        console.log('data', data);
-        setUserInfo(data);
-      } catch (error) {
-        console.error('获取用户信息失败:', error);
-      } finally {
-        setIsLoading(false);
-      }
-    };
-
-    fetchUserInfo();
-  }, [isOpen]);
+  const [uploadingAvatar, setUploadingAvatar] = useState(false);
+  const fileInputRef = useRef<HTMLInputElement>(null);
+  const userStore = useUserStore();
 
   // 添加更新昵称的函数
   const updateNickname = async () => {
@@ -51,7 +35,10 @@ export const UserSection: React.FC<UserSectionProps> = ({ isOpen }) => {
         body: JSON.stringify({ nickname: newNickname.trim() })
       });
       const { data } = await response.json();
-      setUserInfo(data);
+      console.log('更新用户信息', data);
+      //更新用户信息
+      userStore.setUserInfo(data);
+      
       setIsEditing(false);
     } catch (error) {
       console.error('更新昵称失败:', error);
@@ -60,6 +47,45 @@ export const UserSection: React.FC<UserSectionProps> = ({ isOpen }) => {
     }
   };
 
+  // 添加上传头像的处理函数
+  const handleAvatarUpload = async (event: React.ChangeEvent<HTMLInputElement>) => {
+    const file = event.target.files?.[0];
+    if (!file) return;
+
+    try {
+      setUploadingAvatar(true);
+      
+      // 1. 首先从后端获取上传 URL
+      const response = await request('/api/user/upload', {
+        method: 'POST'
+      });
+      const { uploadURL, id } = await response.json();
+      
+      // 2. 上传图片到 Cloudflare Images
+      const formData = new FormData();
+      formData.append('file', file); // 使用 'file' 作为字段名
+
+      await fetch(uploadURL, {
+        method: 'POST',
+        body: formData
+      });
+
+      // 3. 更新用户头像信息
+      const updateResponse = await request('/api/user/update', {
+        method: 'POST',
+        body: JSON.stringify({ avatar_url: id })
+      });
+      
+      const { data } = await updateResponse.json();
+      userStore.setUserInfo(data);
+      
+    } catch (error) {
+      console.error('上传头像失败:', error);
+    } finally {
+      setUploadingAvatar(false);
+    }
+  };
+
   if (!isOpen) return null;
   
   return (
@@ -73,13 +99,41 @@ export const UserSection: React.FC<UserSectionProps> = ({ isOpen }) => {
     >
       {/* 头像区域 */}
       <div className="relative group cursor-pointer">
-        <div className="w-10 h-10 rounded-full bg-gradient-to-br from-orange-400 to-rose-400 flex items-center justify-center shadow-sm">
-          <span className="text-base font-medium text-white">
-            {isLoading ? '...' : userInfo?.nickname?.[0] || '我'}
-          </span>
+        <input
+          type="file"
+          ref={fileInputRef}
+          className="hidden"
+          accept="image/*"
+          onChange={handleAvatarUpload}
+        />
+        <div 
+          className="w-10 h-10 rounded-full bg-gradient-to-br from-orange-400 to-rose-400 flex items-center justify-center shadow-sm overflow-hidden"
+          onClick={() => !uploadingAvatar && fileInputRef.current?.click()}
+        >
+          {uploadingAvatar ? (
+            <div className="flex items-center justify-center w-full h-full bg-black/20">
+              <div className="w-5 h-5 border-2 border-white border-t-transparent rounded-full animate-spin" />
+            </div>
+          ) : userStore.userInfo?.avatar_url ? (
+            <img 
+              src={`${userStore.userInfo.avatar_url}`}
+              alt="avatar"
+              className="w-full h-full object-cover"
+            />
+          ) : (
+            <span className="text-base font-medium text-white">
+              {userStore.userInfo?.nickname?.[0] || '我'}
+            </span>
+          )}
         </div>
         {/* 头像hover效果 */}
-        <div className="absolute inset-0 rounded-full bg-black/40 flex items-center justify-center opacity-0 group-hover:opacity-100 transition-opacity">
+        <div 
+          className={cn(
+            "absolute inset-0 rounded-full bg-black/40 flex items-center justify-center transition-opacity",
+            uploadingAvatar ? 'opacity-0' : 'opacity-0 group-hover:opacity-100'
+          )}
+          onClick={() => !uploadingAvatar && fileInputRef.current?.click()}
+        >
           <Edit2Icon className="w-4 h-4 text-white" />
         </div>
       </div>
@@ -94,7 +148,7 @@ export const UserSection: React.FC<UserSectionProps> = ({ isOpen }) => {
                 value={newNickname}
                 onChange={(e) => setNewNickname(e.target.value)}
                 className="text-sm px-2  border rounded-md w-full"
-                placeholder={userInfo?.nickname || '输入新昵称'}
+                placeholder={userStore.userInfo?.nickname || '输入新昵称'}
                 onKeyDown={(e) => {
                   if (e.key === 'Enter') updateNickname();
                   if (e.key === 'Escape') setIsEditing(false);
@@ -121,7 +175,7 @@ export const UserSection: React.FC<UserSectionProps> = ({ isOpen }) => {
           ) : (
             <>
               <span className="text-sm font-semibold group-hover:text-primary transition-colors">
-                {isLoading ? '加载中...' : userInfo?.nickname || '游客用户'}
+                {isLoading ? '加载中...' : userStore.userInfo?.nickname || '游客用户'}
               </span>
               <Edit2Icon 
                 className={cn(
@@ -130,7 +184,7 @@ export const UserSection: React.FC<UserSectionProps> = ({ isOpen }) => {
                 )}
                 onClick={() => {
                   setIsEditing(true);
-                  setNewNickname(userInfo?.nickname || '');
+                  setNewNickname(userStore.userInfo?.nickname || '');
                 }}
               />
             </>