diff --git a/IRaCIS.Core.Application/Service/TrialSiteUser/TrialSiteService.cs b/IRaCIS.Core.Application/Service/TrialSiteUser/TrialSiteService.cs
index 8ca70d2cb..14a0c6395 100644
--- a/IRaCIS.Core.Application/Service/TrialSiteUser/TrialSiteService.cs
+++ b/IRaCIS.Core.Application/Service/TrialSiteUser/TrialSiteService.cs
@@ -146,8 +146,10 @@ namespace IRaCIS.Core.Application.Services
         public async Task<List<TrialSiteSelect>> GetTrialSiteSelectList(string? siteName)
         {
             var list = _siteRepository
-                 .WhereIf(!string.IsNullOrWhiteSpace(siteName), t => t.SiteName.Contains(siteName) || t.SiteNameCN.Contains(siteName) || t.AliasName.Contains(siteName))
-                 .Select(t => new TrialSiteSelect() { SiteId = t.Id, SiteName = _userInfo.IsEn_Us ? t.SiteName : t.SiteNameCN, AliasName = t.AliasName }).ToList();
+            .WhereIf(!string.IsNullOrWhiteSpace(siteName), t => t.SiteName.Contains(siteName) || t.SiteNameCN.Contains(siteName) || t.AliasName.Contains(siteName))
+            .Select(t => new TrialSiteSelect() { SiteId = t.Id, SiteName = _userInfo.IsEn_Us ? t.SiteName : t.SiteNameCN, AliasName = t.AliasName }).ToList()
+                 .OrderBy(x=>x.SiteName)
+                 .ToList();
 
             return list;
         }