diff --git a/mhd-user-center/src/main/java/com/mhd/user/application/service/UserApplicationService.java b/mhd-user-center/src/main/java/com/mhd/user/application/service/UserApplicationService.java
index 4a147a23e..acf878138 100644
--- a/mhd-user-center/src/main/java/com/mhd/user/application/service/UserApplicationService.java
+++ b/mhd-user-center/src/main/java/com/mhd/user/application/service/UserApplicationService.java
@@ -1902,6 +1902,10 @@ public class UserApplicationService {
                 log.warn("同步商城用户失败，但不影响用户保存: {}", e.getMessage());
             }
             try {
+                // 截断avatar URL（YMS的avatar列长度有限，去掉OSS签名参数）
+                if (userEntity.getAvatar() != null && userEntity.getAvatar().contains("?")) {
+                    userEntity.setAvatar(userEntity.getAvatar().substring(0, userEntity.getAvatar().indexOf("?")));
+                }
                 ymsDomainService.addOrEditYmsUser(userEntity);
             } catch (Exception e) {
                 log.warn("同步YMS平台员工信息失败，但不影响用户保存: {}", e.getMessage());