diff --git a/agileboot-domain/src/main/java/com/agileboot/domain/wx/user/WxUserApplicationService.java b/agileboot-domain/src/main/java/com/agileboot/domain/wx/user/WxUserApplicationService.java
index ac922cf..89e486e 100644
--- a/agileboot-domain/src/main/java/com/agileboot/domain/wx/user/WxUserApplicationService.java
+++ b/agileboot-domain/src/main/java/com/agileboot/domain/wx/user/WxUserApplicationService.java
@@ -291,11 +291,18 @@ public class WxUserApplicationService {
             return false;
         }
 
+
         // 查询汇邦云用户（通过身份证）
         Ab98UserEntity ab98UserEntity = ab98UserService.getByIdnum(command.getIdNum());
 
         // 如果汇邦云用户存在且姓名匹配，则直接绑定
         if (ab98UserEntity != null && StringUtils.equals(ab98UserEntity.getName(), command.getName())) {
+            // 检查是否有其他微信用户已经绑定了该ab98UserId
+            WxUserEntity existingWxUser = userService.getByAb98UserId(ab98UserEntity.getAb98UserId());
+            if (existingWxUser != null) {
+                // 有其他微信用户已经绑定了该ab98UserId，直接抛出异常
+                throw new IllegalArgumentException("该汇邦云用户已被其他微信用户绑定");
+            }
             // 更新微信用户表的ab98UserId
             WxUserEntity wxUserEntity = userService.getByOpenid(openid);
             if (wxUserEntity != null) {