diff --git a/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs b/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs
index 0f353faaf..fec5b514b 100644
--- a/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs
+++ b/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs
@@ -16,6 +16,7 @@ using IRaCIS.Core.Infrastructure;
 using MassTransit;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
 using System.Linq.Dynamic.Core;
 using Subject = IRaCIS.Core.Domain.Models.Subject;
 
@@ -1008,6 +1009,10 @@ public class VisitTaskService(IRepository<VisitTask> _visitTaskRepository,
 
         if (critrion.IsReadingTaskViewInOrder == ReadingOrder.InOrder)
         {
+            var extralObj = _trialRepository.Where(t => t.Id == trialId).Select(t => new { t.TrialExtraConfigJsonStr }).FirstOrDefault();
+
+            var extralConfig = JsonConvert.DeserializeObject<TrialExtraConfig>(extralObj?.TrialExtraConfigJsonStr) ?? new TrialExtraConfig();
+
             var visitQuery = _visitTaskRepository.Where(x => x.TrialId == inQuery.TrialId && x.DoctorUserId == _userInfo.UserRoleId && x.TaskState == TaskState.Effect && x.Subject.IsSubjectQuit == false)
 
            .WhereIf(inQuery.SubjectId != null, x => x.SubjectId == inQuery.SubjectId)
@@ -1015,7 +1020,7 @@ public class VisitTaskService(IRepository<VisitTask> _visitTaskRepository,
             .WhereIf(critrion.IsAutoCreate == false, t => !t.Subject.SubjectCriteriaEvaluationVisitFilterList.Where(t => t.TrialReadingCriterionId == trialReadingCriterionId).Any(f => f.IsGeneratedTask == false && t.VisitTaskNum > f.SubjectVisit.VisitNum))
 
            // 前序 不存在 未一致性核查未通过的
-           .Where(t => !t.Subject.SubjectVisitList.Any(sv => sv.CheckState != CheckStateEnum.CVPassed && t.VisitTaskNum >= sv.VisitNum))
+           .Where(t => !t.Subject.SubjectVisitList.Where(t => extralConfig.IsOpenLostVistRead ? t.IsLostVisit == false : true).Any(sv => sv.CheckState != CheckStateEnum.CVPassed && t.VisitTaskNum >= sv.VisitNum))
            //.WhereIf(critrion.IsAutoCreate == false, t => t.Subject.SubjectCriteriaEvaluationVisitFilterList.Where(t => t.TrialReadingCriterionId == trialReadingCriterionId).Any(t => t.IsGeneratedTask == false) ?
            //t.VisitTaskNum <= t.Subject.SubjectCriteriaEvaluationVisitFilterList.Where(t => t.TrialReadingCriterionId == trialReadingCriterionId && t.IsGeneratedTask == false).Min(t => t.SubjectVisit.VisitNum) : true)
            //.Where(t => t.Subject.SubjectVisitList.Any(t => t.CheckState != CheckStateEnum.CVPassed) ? t.VisitTaskNum <= t.Subject.SubjectVisitList.Where(t => t.CheckState != CheckStateEnum.CVPassed).Min(t => t.VisitNum) : true)
@@ -1038,14 +1043,15 @@ public class VisitTaskService(IRepository<VisitTask> _visitTaskRepository,
                 UnReadTaskCount = x.Where(y => y.TrialReadingCriterionId == trialReadingCriterionId && y.ReadingTaskState != ReadingTaskState.HaveSigned).Count(),
 
                 //未读 里可读任务量   
-                UnReadCanReadTaskCount = x.Where(y => y.TrialReadingCriterionId == trialReadingCriterionId && y.ReadingTaskState != ReadingTaskState.HaveSigned && y.IsFrontTaskNeedSignButNotSign == false && (y.IsNeedClinicalDataSign == false || y.IsClinicalDataSign == true)
+                UnReadCanReadTaskCount = x.Where(t => extralConfig.IsOpenLostVistRead ? true : t.IsFrontTaskNeedSignButNotSign == false).Where(y => y.TrialReadingCriterionId == trialReadingCriterionId && y.ReadingTaskState != ReadingTaskState.HaveSigned && (y.IsNeedClinicalDataSign == false || y.IsClinicalDataSign == true)
                 //不能对包含聚合或子查询的表达式执行聚合函数
                 //&& !x.Any(t => t.ReadingTaskState != ReadingTaskState.HaveSigned && t.IsNeedClinicalDataSign == true && t.IsClinicalDataSign == false && t.VisitTaskNum<y.VisitTaskNum )
                 ).Count(),
 
 
                 UnReadCanReadTaskList = x.Where(y => y.TrialReadingCriterionId == trialReadingCriterionId && y.ReadingTaskState != ReadingTaskState.HaveSigned)
-                .Where(y => y.IsFrontTaskNeedSignButNotSign == false && (y.IsNeedClinicalDataSign == false || y.IsClinicalDataSign == true))
+                .Where(t => extralConfig.IsOpenLostVistRead ? true : t.IsFrontTaskNeedSignButNotSign == false)
+                .Where(y => /*y.IsFrontTaskNeedSignButNotSign == false &&*/ (y.IsNeedClinicalDataSign == false || y.IsClinicalDataSign == true))
                 .OrderBy(x => x.VisitTaskNum)
                 .Select(u => new IRUnreadTaskView()
                 {
diff --git a/IRaCIS.Core.Application/Service/TrialSiteUser/DTO/TrialViewModel.cs b/IRaCIS.Core.Application/Service/TrialSiteUser/DTO/TrialViewModel.cs
index 8fae897d5..02cc8441c 100644
--- a/IRaCIS.Core.Application/Service/TrialSiteUser/DTO/TrialViewModel.cs
+++ b/IRaCIS.Core.Application/Service/TrialSiteUser/DTO/TrialViewModel.cs
@@ -261,11 +261,18 @@ namespace IRaCIS.Application.Contracts
         #endregion
 
 
-        #region 项目术语配置
-        public List<TrialObjectNameConfig> TrialObjectNameList {  get; set; }
+        /// <summary>
+        /// 打开失访可读
+        /// </summary>
+        public bool IsOpenLostVistRead { get; set; } = false;
+
+
+        #region  视图模型返回 项目术语配置 ，实际数据库没有配置
+        public List<TrialObjectNameConfig> TrialObjectNameList { get; set; }
+        public CollectImagesType CollectImagesEnum { get; set; }
+
         #endregion
 
-        public CollectImagesType CollectImagesEnum { get; set; }
     }
 
     public class TrialPacsInfo