diff --git a/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/domain/EBom/EBomToPBomFor31.java b/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/domain/EBom/EBomToPBomFor31.java
index 8b6de984..cadd966b 100644
--- a/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/domain/EBom/EBomToPBomFor31.java
+++ b/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/domain/EBom/EBomToPBomFor31.java
@@ -81,6 +81,7 @@ public class EBomToPBomFor31 extends EBomToPbomBase {
         check();
         //bom 提层
         liftingLayer();
+        generateDrawingNo(result, parent.getRowId(), "");
         splitData();
         List<String> hasConvert = new ArrayList<>();