diff --git a/DOAN.Service/MES/quality/QcDefectCollectionService.cs b/DOAN.Service/MES/quality/QcDefectCollectionService.cs
index 75f19b4..961cf1b 100644
--- a/DOAN.Service/MES/quality/QcDefectCollectionService.cs
+++ b/DOAN.Service/MES/quality/QcDefectCollectionService.cs
@@ -33,6 +33,8 @@ namespace DOAN.Service.MES.quality
         /// <returns></returns>
         public bool GenerateDefectConllectionPlan(string line_code, DateTime dateTime, string CreatedBy)
         {
+            bool isGenerate=Context.Queryable<QcDefectCollection>().Where(it=>it.LineCode==line_code).Where(it=>it.DateTime==dateTime).Any();
+            if (isGenerate) { return false; }
             List<QcDefectCollection> qcDefectCollections = new List<QcDefectCollection>();
             //1  查询  产线物料需求计划
             List<MmRequirePlanByline> MmPreparationTaskLineList = Context.Queryable<MmRequirePlanByline>().Where(it => it.LineCode == line_code)