diff --git a/industry-system/src/main/java/com/industry/work/service/impl/IndustryMaterialServiceImpl.java b/industry-system/src/main/java/com/industry/work/service/impl/IndustryMaterialServiceImpl.java
index c5f45be8..7d918f4e 100644
--- a/industry-system/src/main/java/com/industry/work/service/impl/IndustryMaterialServiceImpl.java
+++ b/industry-system/src/main/java/com/industry/work/service/impl/IndustryMaterialServiceImpl.java
@@ -233,8 +233,8 @@ public class IndustryMaterialServiceImpl implements IIndustryMaterialService {
         List<IndustryMaterialVo> industryMaterialVos = industryMaterialMapper.selectIndustryMaterialByBatchId(batchId);
         // 进行重新排列
         for (int i = 1; i <= industryMaterialVos.size(); i++) {
-            industryMaterialVos.get(i).setSort((long) i);
-            industryMaterialMapper.updateIndustryMaterial(industryMaterialVos.get(i));
+            industryMaterialVos.get(i-1).setSort((long) i);
+            industryMaterialMapper.updateIndustryMaterial(industryMaterialVos.get(i-1));
         }
 
         // 下面处理redis的问题