diff --git a/src/main/java/com/gaotao/modules/part/service/impl/PartServiceImpl.java b/src/main/java/com/gaotao/modules/part/service/impl/PartServiceImpl.java
index 589f69c..b24349a 100644
--- a/src/main/java/com/gaotao/modules/part/service/impl/PartServiceImpl.java
+++ b/src/main/java/com/gaotao/modules/part/service/impl/PartServiceImpl.java
@@ -388,7 +388,9 @@ public class PartServiceImpl extends ServiceImpl<PartMapper, Part> implements Pa
 
             // 批量删除已有数据
             Set<String> partNoInDb = baseMapper.getExistingPartNos(data.getSite(), partNoSet);
-            partNoInDb.addAll(baseMapper.getExistingPartNos(data.getSite(), partNoSet1));
+            if (!partNoSet1.isEmpty()){
+                partNoInDb.addAll(baseMapper.getExistingPartNos(data.getSite(), partNoSet1));
+            }
             if (!partNoInDb.isEmpty()) {
                 baseMapper.batchDelete(data.getSite(), partNoInDb);
                 externalPartCustomerMapper.batchDelete(data.getSite(), partNoInDb);