diff --git a/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/CompareReportService.java b/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/CompareReportService.java
index 1552a46f..63132ace 100644
--- a/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/CompareReportService.java
+++ b/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/CompareReportService.java
@@ -2,6 +2,7 @@ package com.nflg.product.bomnew.service;
 
 import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.convert.Convert;
+import cn.hutool.core.util.NumberUtil;
 import cn.hutool.core.util.ObjectUtil;
 import cn.hutool.core.util.StrUtil;
 import cn.hutool.extra.spring.SpringUtil;
@@ -318,17 +319,24 @@ public class CompareReportService {
                         }
                         //多层比较父级物料编码/图号
                         if (queryType.compareTo(ReportConstant.QueryTypeEnum.MULTI.getValue()) == 0) {
-                            if (CollUtil.isEmpty(leftBomRowIdMap.get(from.getParentRowId()))
-                                    || CollUtil.isEmpty(rightBomRowIdMap.get(to.getParentRowId()))) {
-                                compareReportVO.setSymbol(ReportConstant.SymbolEnum.NON_EQ.getValue());
-                                continue;
-                            }
-                            ForwardReportVO fromParent = leftBomRowIdMap.get(from.getParentRowId()).get(0);
-                            ForwardReportVO toParent = rightBomRowIdMap.get(to.getParentRowId()).get(0);
 
-                            if (!compareFunc.apply(fromParent).equals(compareFunc.apply(toParent))) {
-                                compareReportVO.setSymbol(ReportConstant.SymbolEnum.NON_EQ.getValue());
-                                continue;
+                            //根节点下面不用比较
+                            if (  (Objects.nonNull(from.getParentRowId()) &&from.getParentRowId()>0)
+                                    &&  (Objects.nonNull(to.getParentRowId()) &&to.getParentRowId()>0)  ) {
+
+                                if (CollUtil.isEmpty(leftBomRowIdMap.get(from.getParentRowId()))
+                                        || CollUtil.isEmpty(rightBomRowIdMap.get(to.getParentRowId()))) {
+                                    compareReportVO.setSymbol(ReportConstant.SymbolEnum.NON_EQ.getValue());
+                                    continue;
+                                }
+                                ForwardReportVO fromParent = leftBomRowIdMap.get(from.getParentRowId()).get(0);
+                                ForwardReportVO toParent = rightBomRowIdMap.get(to.getParentRowId()).get(0);
+
+                                if (!compareFunc.apply(fromParent).equals(compareFunc.apply(toParent))) {
+                                    compareReportVO.setSymbol(ReportConstant.SymbolEnum.NON_EQ.getValue());
+                                    continue;
+                                }
+
                             }
 
                         } else {