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 b883f329..fdadb4b6 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
@@ -78,6 +78,7 @@ public class SysIotModelServiceImpl implements SysIotModelService {
 
         sysIotModel.setRevision(1);
         sysIotModelMapper.insert(sysIotModel);
+        addModelCache(sysIotModel);
         SysIotModelVo sysIotModelVo = new SysIotModelVo();
         BeanCopyUtils.copy(sysIotModel, sysIotModelVo);
         sysIotModelVo.setIotModelCode(sysIotModelDto.getIotModelCode().toLowerCase());
@@ -115,6 +116,7 @@ public class SysIotModelServiceImpl implements SysIotModelService {
             throw new RuntimeException("该物模型下面有类型，不能删除");
         }
         sysIotModelMapper.deleteById(sysIotModelDto.getId());
+        deleteModelCache(sysIotModelDto.getId());
 
     }
 
@@ -621,4 +623,11 @@ public class SysIotModelServiceImpl implements SysIotModelService {
         }
     }
 
+    private void addModelCache(SysIotModel sysIotModel){
+        dataService.iotModelMap.put(sysIotModel.getId().toString(), sysIotModel.getIotModelCode());
+    }
+
+    private void deleteModelCache(Long irn){
+        dataService.iotModelMap.remove(irn.toString());
+    }
 }