diff --git a/IRaCIS.Core.Application/Service/QC/QCListService.cs b/IRaCIS.Core.Application/Service/QC/QCListService.cs
index cea253e6..a875b628 100644
--- a/IRaCIS.Core.Application/Service/QC/QCListService.cs
+++ b/IRaCIS.Core.Application/Service/QC/QCListService.cs
@@ -114,7 +114,8 @@ namespace IRaCIS.Core.Application.Image.QA
                        .ProjectTo<QCCRCVisitViewModel>(_mapper.ConfigurationProvider);
 
 
-            var pageList = await query.ToPagedListAsync(visitSearchDTO.PageIndex, visitSearchDTO.PageSize, visitSearchDTO.SortField, visitSearchDTO.Asc);
+            var defalutSortArray = new string[] { nameof(SubjectVisit.IsUrgent), nameof(SubjectVisit.SubjectId), nameof(SubjectVisit.VisitNum) };
+            var pageList = await query.ToPagedListAsync(visitSearchDTO.PageIndex, visitSearchDTO.PageSize, visitSearchDTO.SortField, visitSearchDTO.Asc,string.IsNullOrWhiteSpace(visitSearchDTO.SortField), defalutSortArray);
 
             var config = await _repository.Where<Trial>(t => t.Id == visitSearchDTO.TrialId).ProjectTo<TrialSubjectAndSVConfig>(_mapper.ConfigurationProvider).FirstOrDefaultAsync().IfNullThrowException();
 
@@ -466,7 +467,8 @@ namespace IRaCIS.Core.Application.Image.QA
                         //.WhereIf(visitSearchDTO.ChallengeState != null, t => t.ChallengeState == visitSearchDTO.ChallengeState)
                         .ProjectTo<QCVisitViewModel>(_mapper.ConfigurationProvider);
 
-            var pageList = query.ToPagedList(visitSearchDTO.PageIndex, visitSearchDTO.PageSize, visitSearchDTO.SortField, visitSearchDTO.Asc);
+            var defalutSortArray = new string[] { nameof(SubjectVisit.IsUrgent), nameof(SubjectVisit.SubjectId), nameof(SubjectVisit.VisitNum) };
+            var pageList = await query.ToPagedListAsync(visitSearchDTO.PageIndex, visitSearchDTO.PageSize, visitSearchDTO.SortField, visitSearchDTO.Asc,string.IsNullOrWhiteSpace(visitSearchDTO.SortField), defalutSortArray);
 
             var config = await _repository.Where<Trial>(t => t.Id == visitSearchDTO.TrialId).ProjectTo<TrialSubjectAndSVConfig>(_mapper.ConfigurationProvider).FirstOrDefaultAsync().IfNullThrowException();
             return ResponseOutput.Ok(pageList, config);