diff --git a/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/service/material/MaterialServiceImpl.java b/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/service/material/MaterialServiceImpl.java
index aa22fdbe..b499428b 100644
--- a/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/service/material/MaterialServiceImpl.java
+++ b/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/service/material/MaterialServiceImpl.java
@@ -42,7 +42,7 @@ public class MaterialServiceImpl implements MaterialService {
     private void validateMaterialRepeat(String code, Long id) {
         Long repeat = materialMapper.selectCount(new LambdaQueryWrapper<MaterialDO>() {{
             eq(MaterialDO::getCode, code);
-            eq(id != null, MaterialDO::getId, id);
+            ne(id != null, MaterialDO::getId, id);
             last("LIMIT 1");
         }});
         if(repeat != null && repeat.longValue() > 0){