diff --git a/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs b/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs
index bf86d93d..f8d10ec3 100644
--- a/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs
+++ b/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs
@@ -298,7 +298,7 @@ namespace IRaCIS.Core.Application.Service
             //获取待分配的医生列表  指导分配医生的数量
             var waitAllocationDoctorList = _taskAllocationRuleRepository.Where(t => t.TrialId == trialId && t.IsEnable)
                 .Select(t => new { t.DoctorUserId, t.PlanReadingRatio, Weight = (double)(subjectCount * t.PlanReadingRatio) % 100 })
-                .OrderByDescending(t => t.PlanReadingRatio).ThenByDescending(t => t.Weight);
+                .OrderByDescending(t => t.PlanReadingRatio).ThenByDescending(t => t.Weight).ToList();
 
             //获取项目配置 判断应该分配几个医生
             var trialConfig = (await _trialRepository.Where(t => t.Id == trialId).Select(t => new { TrialId = t.Id, t.ReadingType, t.IsFollowVisitAutoAssign, t.IsFollowGlobalVisitAutoAssign, t.FollowGlobalVisitAutoAssignDefaultState, t.TaskAllocateObjEnum }).FirstOrDefaultAsync()).IfNullThrowException();