diff --git a/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/domain/EBom/EBomToPbomBase.java b/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/domain/EBom/EBomToPbomBase.java
index 1308297d..9d95a350 100644
--- a/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/domain/EBom/EBomToPbomBase.java
+++ b/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/domain/EBom/EBomToPbomBase.java
@@ -135,7 +135,7 @@ public abstract class EBomToPbomBase {
 
         List<BomNewEbomParentVO> result = child.stream().filter(u -> StrUtil.isBlank(u.getMaterialNo())).collect(Collectors.toList());
 
-        Map<String, List<BomNewEbomParentVO>> listMp = child.stream().collect(Collectors.groupingBy(BomNewEbomParentVO::getMaterialNo));
+        Map<String, List<BomNewEbomParentVO>> listMp = child.stream().filter(u->StrUtil.isNotBlank(u.getMaterialNo())).collect(Collectors.groupingBy(BomNewEbomParentVO::getMaterialNo));
 
         for (String key : listMp.keySet()) {
             List<BomNewEbomParentVO> voList = listMp.get(key);