diff --git a/IRaCIS.Core.Application/Service/Institution/DTO/SiteModel.cs b/IRaCIS.Core.Application/Service/Institution/DTO/SiteModel.cs
index 2700f5141..fb05d4d47 100644
--- a/IRaCIS.Core.Application/Service/Institution/DTO/SiteModel.cs
+++ b/IRaCIS.Core.Application/Service/Institution/DTO/SiteModel.cs
@@ -47,6 +47,13 @@ namespace IRaCIS.Application.Contracts
     }
 
 
+    public class TrialSiteInQuery:PageInput
+    {
+        public string? TrialSiteName { get; set; }
+
+        public string? TrialCode { get; set; }
+    }
+
     public class TrialSiteAddView 
     {
         public Guid TrialSiteId { get; set; }
diff --git a/IRaCIS.Core.Application/Service/Institution/SiteService.cs b/IRaCIS.Core.Application/Service/Institution/SiteService.cs
index 32df16d12..33ccf3180 100644
--- a/IRaCIS.Core.Application/Service/Institution/SiteService.cs
+++ b/IRaCIS.Core.Application/Service/Institution/SiteService.cs
@@ -50,16 +50,21 @@ namespace IRaCIS.Application.Services
             return await _siteRepository.ProjectTo<SiteSelectionDTO>(_mapper.ConfigurationProvider).ToListAsync();
         }
 
-
-        public async Task<List<TrialSiteAddView>> GetTrialSiteList()
+        [HttpPost]
+        public async Task<PageOutput<TrialSiteAddView>> GetTrialSiteList(TrialSiteInQuery inQuery)
         {
-            return _repository.Where<TrialSite>(t => t.SiteId == null).Select(t => new TrialSiteAddView()
-            {
-                TrialCode = t.Trial.TrialCode,
-                TrialSiteAliasName = t.TrialSiteAliasName,
-                TrialSiteId = t.Id,
-                TrialSiteName = t.TrialSiteName
-            }).ToList();
+            var query = _repository.Where<TrialSite>(t => t.SiteId == null)
+                .WhereIf(string.IsNullOrEmpty(inQuery.TrialSiteName), t => t.TrialSiteName.Contains(inQuery.TrialSiteName) || t.TrialSiteAliasName.Contains(inQuery.TrialSiteName))
+                .WhereIf(string.IsNullOrEmpty(inQuery.TrialCode), t => t.Trial.TrialCode.Contains(inQuery.TrialCode))
+                .Select(t => new TrialSiteAddView()
+                {
+                    TrialCode = t.Trial.TrialCode,
+                    TrialSiteAliasName = t.TrialSiteAliasName,
+                    TrialSiteId = t.Id,
+                    TrialSiteName = t.TrialSiteName
+                });
+
+            return await query.ToPagedListAsync(inQuery.PageIndex, inQuery.PageSize, string.IsNullOrWhiteSpace(inQuery.SortField) ? nameof(TrialSiteAddView.TrialCode) : inQuery.SortField, inQuery.Asc);
         }
 
         /// <summary> 添加研究中心 </summary>