diff --git a/pqs-system/system-boot/src/main/java/com/njcn/system/service/impl/SysDicTreePOServiceImpl.java b/pqs-system/system-boot/src/main/java/com/njcn/system/service/impl/SysDicTreePOServiceImpl.java
index 40a8ed9c2..5c92a6958 100644
--- a/pqs-system/system-boot/src/main/java/com/njcn/system/service/impl/SysDicTreePOServiceImpl.java
+++ b/pqs-system/system-boot/src/main/java/com/njcn/system/service/impl/SysDicTreePOServiceImpl.java
@@ -83,6 +83,9 @@ public class SysDicTreePOServiceImpl extends ServiceImpl<SysDicTreePOMapper, Sys
         boolean result;
         SysDicTreePO sysDicTreePO = new SysDicTreePO();
         BeanUtils.copyProperties(dictTreeParam, sysDicTreePO);
+        if (Objects.isNull(sysDicTreePO.getType())) {
+            sysDicTreePO.setType(null);
+        }
         result = this.updateById(sysDicTreePO);
         if (result) {
             refreshDictTreeCache();