diff --git a/IRaCIS.Core.Application/Service/TrialSiteUser/TrialExternalUserService.cs b/IRaCIS.Core.Application/Service/TrialSiteUser/TrialExternalUserService.cs
index d584612e1..0df5846fa 100644
--- a/IRaCIS.Core.Application/Service/TrialSiteUser/TrialExternalUserService.cs
+++ b/IRaCIS.Core.Application/Service/TrialSiteUser/TrialExternalUserService.cs
@@ -273,7 +273,7 @@ namespace IRaCIS.Core.Application.Service
                     }
 
                     //外部人员语言类型，根据PM创建时界面语言决定
-                    var isEn_US = CultureInfo.CurrentCulture.Name == StaticData.CultureInfo.en_US;
+                    var isEn_US = _userInfo.IsEn_Us;
                     generateUser.UserWorkLanguage = isEn_US ? UserWorkLanguage.US : UserWorkLanguage.CN;