diff --git a/IRaCIS.Core.Application/Service/ImageAndDoc/StudyService.cs b/IRaCIS.Core.Application/Service/ImageAndDoc/StudyService.cs
index 7003dc167..0fc72cb22 100644
--- a/IRaCIS.Core.Application/Service/ImageAndDoc/StudyService.cs
+++ b/IRaCIS.Core.Application/Service/ImageAndDoc/StudyService.cs
@@ -165,6 +165,7 @@ namespace IRaCIS.Core.Application.Service.ImageAndDoc
 
 
                 //特殊处理逻辑
+                study.Modalities = string.Join("、", incommand.Study.SeriesList.Select(t => t.Modality).Distinct());
                 SpecialArchiveStudyDeal(study);
 
 
@@ -216,6 +217,7 @@ namespace IRaCIS.Core.Application.Service.ImageAndDoc
                 //_mapper.Map(incommand.Study, study);
 
                 //特殊处理逻辑
+                study.Modalities =    string.Join("、", incommand.Study.SeriesList.Select(t => t.Modality).Union(study.Modalities.Split("、",StringSplitOptions.RemoveEmptyEntries)).Distinct());
                 SpecialArchiveStudyDeal(study);