diff --git a/backend/shop/views.py b/backend/shop/views.py
index ac5743d..1b853f8 100644
--- a/backend/shop/views.py
+++ b/backend/shop/views.py
@@ -1102,6 +1102,15 @@ def wechat_login(request):
                             dist.user = mp_user
                             dist.save()
                         
+                        # 4. 迁移用户信息（如果小程序用户没有昵称/头像，继承Web用户的）
+                        if not mp_user.nickname and phone_user.nickname:
+                            mp_user.nickname = phone_user.nickname
+                        if not mp_user.avatar_url and phone_user.avatar_url:
+                            mp_user.avatar_url = phone_user.avatar_url
+                        if mp_user.gender == 0 and phone_user.gender != 0:
+                            mp_user.gender = phone_user.gender
+                        mp_user.save()
+                        
                         # 删除旧用户
                         phone_user.delete()
                         user = mp_user