diff --git a/backend/src/main/java/com/designhub/service/UserService.java b/backend/src/main/java/com/designhub/service/UserService.java
index 667e778..7b8fd34 100644
--- a/backend/src/main/java/com/designhub/service/UserService.java
+++ b/backend/src/main/java/com/designhub/service/UserService.java
@@ -635,6 +635,7 @@ public class UserService {
                 user.setRealName(name);
                 user.setEmail(email);
                 user.setAvatar(avatarUrl);
+                user.setDingUserId(dingtalkUserId); // 保存钉钉用户ID，用于发送钉钉通知
                 user.setCreateTime(LocalDateTime.now());
                 user.setUpdateTime(LocalDateTime.now());