diff --git a/backend/app/http/auth.go b/backend/app/http/auth.go
index feab0bf..8ffb80b 100644
--- a/backend/app/http/auth.go
+++ b/backend/app/http/auth.go
@@ -1,6 +1,8 @@
 package http
 
 import (
+	"fmt"
+	"math/rand"
 	"net/url"
 	"time"
 
@@ -53,7 +55,7 @@ func (ctl *auth) Login(ctx fiber.Ctx, code, state, redirect string) error {
 		authUserInfo = &wechat.AuthorizeUserInfo{
 			City:       "",
 			Country:    "",
-			Headimgurl: "/avatar.jpeg",
+			Headimgurl: fmt.Sprintf("/avatar/%d.jpeg", 1+rand.Intn(79)),
 			Nickname:   "暂未设置昵称",
 			Openid:     token.Openid,
 			Privilege:  []string{},
diff --git a/frontend/wechat/avatar.py b/frontend/wechat/avatar.py
new file mode 100644
index 0000000..ffd27d9
--- /dev/null
+++ b/frontend/wechat/avatar.py
@@ -0,0 +1,29 @@
+import requests
+import os
+
+# 创建保存目录
+os.makedirs('avatar', exist_ok=True)
+
+# 设置请求头模拟浏览器访问
+headers = {
+    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36'
+}
+
+for id in range(1, 80):  # 生成1-79的ID
+    url = f'https://himg.bdimg.com/sys/portrait/hotitem/wildkid/{id}'
+    try:
+        response = requests.get(url, headers=headers, timeout=10)
+
+        if response.status_code == 200:
+            # 检查内容类型是否为图片
+            if 'image' in response.headers.get('Content-Type', ''):
+                with open(f'avatar/{id}.jpeg', 'wb') as f:
+                    f.write(response.content)
+                print(f'ID {id} 下载成功')
+            else:
+                print(f'ID {id} 返回非图片内容，已跳过')
+        else:
+            print(f'ID {id} 响应码 {response.status_code}，已跳过')
+
+    except Exception as e:
+        print(f'ID {id} 请求失败: {str(e)}')
\ No newline at end of file
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