diff --git a/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/materialinventory/MaterialInventoryServiceImpl.java b/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/materialinventory/MaterialInventoryServiceImpl.java
index 57c3e72..acb9f9c 100644
--- a/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/materialinventory/MaterialInventoryServiceImpl.java
+++ b/urbanops-module-garden/src/main/java/com/zteits/urbanops/module/garden/service/materialinventory/MaterialInventoryServiceImpl.java
@@ -134,10 +134,9 @@ public class MaterialInventoryServiceImpl implements MaterialInventoryService {
         if (outNum == null) {
             throw exception0(BAD_REQUEST.getCode(),"更新库存失败：outNum为空！");
         }
-        MaterialInventoryDO out = new MaterialInventoryDO();
-        out.setInventoryId(materialInventory.getInventoryId());
-        out.setOutTotalNum(materialInventory.getInventoryTotalNum() + outNum);
-        out.setCurrentNum(materialInventory.getCurrentNum() - outNum);
+        materialInventory.setInventoryId(materialInventory.getInventoryId());
+        materialInventory.setOutTotalNum(materialInventory.getInventoryTotalNum() + outNum);
+        materialInventory.setCurrentNum(materialInventory.getCurrentNum() - outNum);
         return materialInventoryMapper.updateById(materialInventory);
     }