diff --git a/插件库/Lskj.PubBomImport/FrmProgress.cs b/插件库/Lskj.PubBomImport/FrmProgress.cs
index 11200b3..72a25e2 100644
--- a/插件库/Lskj.PubBomImport/FrmProgress.cs
+++ b/插件库/Lskj.PubBomImport/FrmProgress.cs
@@ -523,7 +523,7 @@ namespace Lskj.PubBomImport
                                                         frmBillInfo.AddOrUpdateBill(masterRow, detailTable);
                                                         SetProcessBar(60, 0);
                                                         //备份Bom清单明细
-                                                        string bakBomListSql = @"delete bom_BillListlogTab where parentProduct = '{0}';insert into bom_BillListlogTab select * from bom_BillListTab where parentProduct = '{0}';";
+                                                        string bakBomListSql = @"delete bom_BillListlogTab where parentProduct = '{0}' and historyVer = (select top 1 historyVer from bom_BillListTab where parentProduct = '{0}');insert into bom_BillListlogTab select * from bom_BillListTab where parentProduct = '{0}';";
                                                         SqlHelper.ExecuteNonQuery(string.Format(bakBomListSql, productCode));
                                                         string billNo = "";
                                                         frmBillInfo.BillSave(ref billNo);