diff --git a/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs b/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs
index d951154ef..a68a917e3 100644
--- a/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs
+++ b/IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs
@@ -2183,8 +2183,11 @@ namespace IRaCIS.Core.Application.Service
                 async Task addOrEditmark(List<QuestionMarkInfo> addOrUpdatemarkList)
                 {
 
+                    var markids= addOrUpdatemarkList.Select(x => x.MarkId).Where(x => x != null).Distinct().ToList();
+
                     var markQuestionIds= addOrUpdatemarkList.Select(y => (Guid?)y.QuestionId).ToList();
 
+                    await _readingTaskQuestionMarkRepository.BatchDeleteNoTrackingAsync(x => markids.Contains(x.MarkId)&&x.QuestionId==null );
                     await _readingTaskQuestionMarkRepository.BatchDeleteNoTrackingAsync(x => x.VisitTaskId == inDto.VisitTaskId && markQuestionIds.Contains(x.QuestionId));
 
                     var datetime = DateTime.Now;