diff --git a/IRaCIS.Core.Application/Service/Document/TrialEmailNoticeConfigService.cs b/IRaCIS.Core.Application/Service/Document/TrialEmailNoticeConfigService.cs
index d8cf4d9fa..123865327 100644
--- a/IRaCIS.Core.Application/Service/Document/TrialEmailNoticeConfigService.cs
+++ b/IRaCIS.Core.Application/Service/Document/TrialEmailNoticeConfigService.cs
@@ -176,8 +176,6 @@ namespace IRaCIS.Core.Application.Service
         }
 
 
-
-
         public async Task CommonBusinessScenarioSendEmailAsync(Guid visitTaskId, bool? isEnrollment, bool? isPDConfirm)
         {
             #region 区分场景
diff --git a/IRaCIS.Core.Application/Service/SiteSurvey/TrialSiteSurveyService.cs b/IRaCIS.Core.Application/Service/SiteSurvey/TrialSiteSurveyService.cs
index 83162ecf6..52463445d 100644
--- a/IRaCIS.Core.Application/Service/SiteSurvey/TrialSiteSurveyService.cs
+++ b/IRaCIS.Core.Application/Service/SiteSurvey/TrialSiteSurveyService.cs
@@ -736,12 +736,20 @@ namespace IRaCIS.Core.Application.Contracts
 
             var trialSiteSurvey = (await _trialSiteSurveyRepository.Where(t => t.Id == trialSiteSurveyId).FirstOrDefaultAsync()).IfNullThrowException();
 
-            var siteUserList = await _trialSiteUserSurveyRepository.Where(t => t.TrialSiteSurvey.TrialId==trialId && t.TrialSiteSurvey.SiteId == trialSiteSurvey.SiteId && t.TrialSiteSurvey.IsDeleted==false).Select(t => new { t.TrialSiteSurveyId, t.IsGenerateAccount, t.IsGenerateSuccess, t.UserTypeId,
-                UserTypeEnum=   (UserTypeEnum?) t.UserTypeRole.UserTypeEnum , t.TrialRoleName.Code }).ToListAsync();
+            var siteUserList = await _trialSiteUserSurveyRepository.Where(t => t.TrialSiteSurvey.TrialId==trialId && t.TrialSiteSurvey.SiteId == trialSiteSurvey.SiteId && t.TrialSiteSurvey.IsDeleted==false).Select(t => 
+            new { t.TrialSiteSurveyId, t.IsGenerateAccount, t.IsGenerateSuccess, t.UserTypeId,
+                UserTypeEnum=   (UserTypeEnum?) t.UserTypeRole.UserTypeEnum , t.TrialRoleName.Code,t.Email }).ToListAsync();
 
 
+            foreach (var group in (siteUserList.GroupBy(t => new { t.Email, t.IsGenerateAccount, t.UserTypeId })))
+            {
+                if (group.Count() > 1)
+                {
+                    throw new BusinessValidationFailedException("同一邮箱同一用户类型,生成账号的数据只允许存在一条！");
+                }
+            }
 
-            if (_userInfo.UserTypeEnumInt == (int)UserTypeEnum.Undefined)
+                if (_userInfo.UserTypeEnumInt == (int)UserTypeEnum.Undefined)
             {
                 //是第一次
                 if(!siteUserList.Any(t=>t.IsGenerateSuccess))
@@ -776,8 +784,6 @@ namespace IRaCIS.Core.Application.Contracts
 
 
 
-
-
                 //已生成的不管  管的只需要是  生成失败的并且需要生成账号的
                 var needGenerateList = _trialSiteUserSurveyRepository.Where(t => t.TrialSiteSurveyId == trialSiteSurveyId && t.IsGenerateAccount && t.IsJoin != true).ProjectTo<TrialSiteUserSurveyView>(_mapper.ConfigurationProvider).ToList();