diff --git a/src/main/java/com/xujie/sys/modules/part/service/impl/PartInformationServiceImpl.java b/src/main/java/com/xujie/sys/modules/part/service/impl/PartInformationServiceImpl.java
index 91e8fa02..4580b5b2 100644
--- a/src/main/java/com/xujie/sys/modules/part/service/impl/PartInformationServiceImpl.java
+++ b/src/main/java/com/xujie/sys/modules/part/service/impl/PartInformationServiceImpl.java
@@ -285,7 +285,10 @@ public class PartInformationServiceImpl extends ServiceImpl<PartInformationMappe
         // 检查BOM模板
         PartInformationEntity oldPart = partInformationMapper.selectOne(new QueryWrapper<PartInformationEntity>().eq("site", data.getSite()).eq("part_no", data.getPartNo()));
         // 修改了物料模板
-        if ((oldPart.getTemplateNo() == null && StringUtils.isNotBlank(data.getTemplateNo())) || (!data.getTemplateNo().equals(oldPart.getTemplateNo()))) {
+        String oldTemplateNo = oldPart.getTemplateNo();
+        String newTemplateNo = data.getTemplateNo();
+
+        if ((oldTemplateNo == null && StringUtils.isNotBlank(newTemplateNo)) || (newTemplateNo != null && !newTemplateNo.equals(oldTemplateNo))) {
             // 删除物料的BOM节点
             quicklyCreateBomMapper.deleteQuicklyBomInfo(data.getSite(), data.getPartNo());
             // 查模板数据