diff --git a/das/src/main/java/com/das/modules/equipment/service/impl/SysIotModelServiceImpl.java b/das/src/main/java/com/das/modules/equipment/service/impl/SysIotModelServiceImpl.java
index f41f2eff..2924f6e2 100644
--- a/das/src/main/java/com/das/modules/equipment/service/impl/SysIotModelServiceImpl.java
+++ b/das/src/main/java/com/das/modules/equipment/service/impl/SysIotModelServiceImpl.java
@@ -83,8 +83,11 @@ public class SysIotModelServiceImpl implements SysIotModelService {
         SysUserVo sysUserVo = (SysUserVo) StpUtil.getTokenSession().get(SessionUtil.SESSION_USER_KEY);
 
         SysIotModelVo sysIotModelQuery = sysIotModelMapper.selectIotModelByCode(sysIotModelDto.getIotModelCode());
-        if (!(Long.valueOf(sysIotModelQuery.getId()) == Long.valueOf(sysIotModelDto.getId())) && !(sysIotModelQuery == null)) {
-            throw new ServiceException("物模型code已经存在");
+        if (!(sysIotModelQuery == null)){
+            if(!(sysIotModelQuery.getId().equals(sysIotModelDto.getId()))){
+                throw new ServiceException("物模型code已经存在");
+            }
+
         }
         sysIotModel.setUpdatedTime(new Date());
         sysIotModel.setUpdatedBy(sysUserVo.getAccount());