diff --git a/ruoyi-modules/hwmom-mes/src/main/java/org/dromara/mes/service/impl/BaseDeviceTypeServiceImpl.java b/ruoyi-modules/hwmom-mes/src/main/java/org/dromara/mes/service/impl/BaseDeviceTypeServiceImpl.java
index cc65454..c4da5d7 100644
--- a/ruoyi-modules/hwmom-mes/src/main/java/org/dromara/mes/service/impl/BaseDeviceTypeServiceImpl.java
+++ b/ruoyi-modules/hwmom-mes/src/main/java/org/dromara/mes/service/impl/BaseDeviceTypeServiceImpl.java
@@ -102,6 +102,9 @@ public class BaseDeviceTypeServiceImpl implements IBaseDeviceTypeService {
     public Boolean insertByBo(BaseDeviceTypeBo bo) {
         BaseDeviceType add = MapstructUtils.convert(bo, BaseDeviceType.class);
         validEntityBeforeSave(add);
+        if(StringUtils.isNull(bo.getParentId())){
+            bo.setParentId(0L);
+        }
         //获取父节点信息
         BaseDeviceTypeVo query = baseMapper.selectVoById(bo.getParentId());
         if (ObjectUtils.isNotEmpty(query)) {