diff --git a/IRaCIS.Core.Application/Service/ImageAndDoc/DownloadAndUploadService.cs b/IRaCIS.Core.Application/Service/ImageAndDoc/DownloadAndUploadService.cs
index d5ff743d4..a8cdf55a3 100644
--- a/IRaCIS.Core.Application/Service/ImageAndDoc/DownloadAndUploadService.cs
+++ b/IRaCIS.Core.Application/Service/ImageAndDoc/DownloadAndUploadService.cs
@@ -1137,6 +1137,8 @@ namespace IRaCIS.Core.Application.Service.ImageAndDoc
             var dirDic = new Dictionary<string, string>();
             #region DIR处理导出文件名，并将对应关系上传到OSS里面存储
 
+            var info = await _subjectVisitRepository.Where(t => t.Id == inQuery.SubjectVisitId).Select(t => new { t.Trial.TrialCode }).FirstOrDefaultAsync();
+
             //有传输语法值的导出 才生成DIR
             if (_subjectVisitRepository.Where(t => t.Id == inQuery.SubjectVisitId).SelectMany(t => t.StudyList.SelectMany(t => t.InstanceList)).All(c => c.TransferSytaxUID != string.Empty))
             {
@@ -1148,7 +1150,7 @@ namespace IRaCIS.Core.Application.Service.ImageAndDoc
 
                         DicomStudyId = t.DicomStudy.Id,
 
-                        PatientId = t.DicomStudy.PatientId,
+                        PatientId = info.TrialCode + "-" + t.DicomStudy.PatientId,
                         PatientName = t.DicomStudy.PatientName,
                         PatientBirthDate = t.DicomStudy.PatientBirthDate,
                         PatientSex = t.DicomStudy.PatientSex,
@@ -1508,7 +1510,7 @@ namespace IRaCIS.Core.Application.Service.ImageAndDoc
         public async Task<IResponseOutput> GetIRReadingDownloadStudyInfo(IRDownloadQuery inQuery)
         {
             var info = await _readingQuestionCriterionTrialRepository.Where(t => t.Id == inQuery.TrialReadingCriterionId)
-                  .Select(t => new { t.IsImageFilter, t.CriterionModalitys, t.TrialId, t.IsReadingTaskViewInOrder }).FirstNotNullAsync();
+                  .Select(t => new { t.IsImageFilter, t.CriterionModalitys, t.TrialId, t.IsReadingTaskViewInOrder, t.Trial.TrialCode }).FirstNotNullAsync();
 
             var isQueryDicom = inQuery.DicomStudyIdList.Count > 0;
             var isQueryNoneDicom = inQuery.NoneDicomStudyIdList.Count > 0;
@@ -1539,7 +1541,7 @@ namespace IRaCIS.Core.Application.Service.ImageAndDoc
 
                    DicomStudyId = t.DicomStudy.Id,
 
-                   PatientId = t.DicomStudy.PatientId,
+                   PatientId = info.TrialCode + "-" + t.DicomStudy.PatientId,
                    PatientName = t.DicomStudy.PatientName,
                    PatientBirthDate = t.DicomStudy.PatientBirthDate,
                    PatientSex = t.DicomStudy.PatientSex,
@@ -1579,7 +1581,7 @@ namespace IRaCIS.Core.Application.Service.ImageAndDoc
 
                             DicomStudyId = t.TaskStudy.Id,
 
-                            PatientId = t.TaskStudy.PatientId,
+                            PatientId = info.TrialCode + "-" + t.TaskStudy.PatientId,
                             PatientName = t.TaskStudy.PatientName,
                             PatientBirthDate = t.TaskStudy.PatientBirthDate,
                             PatientSex = t.TaskStudy.PatientSex,
@@ -2248,7 +2250,6 @@ namespace IRaCIS.Core.Application.Service.ImageAndDoc
             }
             else
             {
-
                 #region 在下载前先处理DIR文件
 
                 //有传输语法值的导出 才生成DIR
@@ -2263,7 +2264,7 @@ namespace IRaCIS.Core.Application.Service.ImageAndDoc
 
                        DicomStudyId = t.DicomStudy.Id,
 
-                       PatientId = t.DicomStudy.PatientId,
+                       PatientId = t.Trial.TrialCode + "-" + t.DicomStudy.PatientId,
                        PatientName = t.DicomStudy.PatientName,
                        PatientBirthDate = t.DicomStudy.PatientBirthDate,
                        PatientSex = t.DicomStudy.PatientSex,
diff --git a/IRaCIS.Core.Domain/Image/DicomInstance.cs b/IRaCIS.Core.Domain/Image/DicomInstance.cs
index 36ca7684b..210cf46a3 100644
--- a/IRaCIS.Core.Domain/Image/DicomInstance.cs
+++ b/IRaCIS.Core.Domain/Image/DicomInstance.cs
@@ -13,6 +13,10 @@ public class DicomInstance : BaseFullDeleteAuditEntity, IEntitySeqId
     [ForeignKey("StudyId")]
     public DicomStudy DicomStudy { get; set; }
 
+    [JsonIgnore]
+    [ForeignKey("TrialId")]
+    public Trial Trial { get; set; }
+
     [JsonIgnore]
     public List<ReadingTableAnswerRowInfo> ReadingTableAnswerRowInfoList { get; set; }
     #endregion
diff --git a/IRaCIS.Core.Domain/Image/DicomStudy.cs b/IRaCIS.Core.Domain/Image/DicomStudy.cs
index 07dd5c7cc..09b25c316 100644
--- a/IRaCIS.Core.Domain/Image/DicomStudy.cs
+++ b/IRaCIS.Core.Domain/Image/DicomStudy.cs
@@ -21,6 +21,7 @@ public class DicomStudy : BaseFullDeleteAuditEntity, IEntitySeqId
     [ForeignKey("SubjectVisitId")]
     public SubjectVisit SubjectVisit { get; set; }
 
+
     [JsonIgnore]
     public List<ReadingClinicalData> ReadingClinicalDataList { get; set; }