diff --git a/IRaCIS.Core.Application/Service/Reading/ReadModuleService.cs b/IRaCIS.Core.Application/Service/Reading/ReadModuleService.cs
index 92edb2fc3..502dab06c 100644
--- a/IRaCIS.Core.Application/Service/Reading/ReadModuleService.cs
+++ b/IRaCIS.Core.Application/Service/Reading/ReadModuleService.cs
@@ -243,6 +243,8 @@ namespace IRaCIS.Application.Services
         [HttpPost]
         public async Task<IResponseOutput> AddReadModule(ReadModuleAddDto dto)
         {
+
+            
             var visitQuery =  _subjectVisitRepository.Where(x => x.SubjectId == dto.SubjectId);
 
             visitQuery = visitQuery
@@ -250,8 +252,15 @@ namespace IRaCIS.Application.Services
                 .WhereIf(dto.ExpirationVisitNum != null, x => x.VisitNum == dto.ExpirationVisitNum!);
             var visit = visitQuery.OrderByDescending(x => x.VisitNum).FirstOrDefault();
 
+           
+
             if (visit != null)
             {
+
+                if (await _readModuleRepository.AnyAsync(x => x.SubjectVisitId == visit.Id && x.TrialReadingCriterionId == dto.TrialReadingCriterionId))
+                {
+                    throw new BusinessValidationFailedException($"当前访视已经添加过阅片期");
+                }
                 var readModuleData = new ReadModule()
                 {
                     Id = NewId.NextGuid(),