diff --git a/banner/banner-server/src/main/java/cn/axzo/nanopart/server/service/impl/MaterialServiceImpl.java b/banner/banner-server/src/main/java/cn/axzo/nanopart/server/service/impl/MaterialServiceImpl.java
index 2b8a8d05..2aa4d165 100644
--- a/banner/banner-server/src/main/java/cn/axzo/nanopart/server/service/impl/MaterialServiceImpl.java
+++ b/banner/banner-server/src/main/java/cn/axzo/nanopart/server/service/impl/MaterialServiceImpl.java
@@ -156,7 +156,11 @@ public class MaterialServiceImpl extends ServiceImpl<MaterialDao, Material> impl
 
         log.info("step 5 record log finished: {}, duration: {}", System.currentTimeMillis(), System.currentTimeMillis() - methodStartTime);
 
-        return BeanUtil.copyToList(list, MaterialResp.class);
+        List<MaterialResp> materialResps = BeanUtil.copyToList(list, MaterialResp.class);
+
+        log.info("step 6 convert to resp finished: {}, duration: {}", System.currentTimeMillis(), System.currentTimeMillis() - methodStartTime);
+
+        return materialResps;
     }
 
     /**