diff --git a/sgzb-modules/sgzb-material/src/main/java/com/bonus/sgzb/material/service/impl/BackApplyServiceImpl.java b/sgzb-modules/sgzb-material/src/main/java/com/bonus/sgzb/material/service/impl/BackApplyServiceImpl.java
index 71b7a4cc..ad8af003 100644
--- a/sgzb-modules/sgzb-material/src/main/java/com/bonus/sgzb/material/service/impl/BackApplyServiceImpl.java
+++ b/sgzb-modules/sgzb-material/src/main/java/com/bonus/sgzb/material/service/impl/BackApplyServiceImpl.java
@@ -492,7 +492,7 @@ public class BackApplyServiceImpl implements BackApplyService {
         if (CollUtil.isNotEmpty(dto.getBackApplyList())) {
             for (BackApplyListDto backApplyListDto : dto.getBackApplyList()) {
                 for (BackApplyInfo backApplyDetail : backApplyListDto.getBackApplyDetails()) {
-                    dto.setAuditNum(backApplyDetail.getNum());
+                    dto.setAuditNum(backApplyDetail.getPreNum());
                     re = backApplyMapper.auditAll(dto);
                 }
             }