diff --git a/FrontendWebApi/ApiControllers/DeviceManageController.cs b/FrontendWebApi/ApiControllers/DeviceManageController.cs
index 4e25e15..dd0f597 100644
--- a/FrontendWebApi/ApiControllers/DeviceManageController.cs
+++ b/FrontendWebApi/ApiControllers/DeviceManageController.cs
@@ -128,7 +128,7 @@ namespace FrontendWebApi.ApiControllers
             
             try
             {
-                var sqlString = $@"select building_tag, full_name from building where deleted = 0 order by priority";
+                var sqlString = $@"select building_tag, full_name, urn_3D from building where deleted = 0 order by priority";
                 var bl = await backendRepository.GetAllAsync<BuildList>(sqlString);
 
                 apiResult.Code = "0000";
diff --git a/FrontendWebApi/Models/Device.cs b/FrontendWebApi/Models/Device.cs
index fb3e2f4..7f0389e 100644
--- a/FrontendWebApi/Models/Device.cs
+++ b/FrontendWebApi/Models/Device.cs
@@ -17,6 +17,7 @@ namespace FrontendWebApi.Models
     { 
         public string full_name { get; set; }
         public string building_tag { get; set; }
+        public string urn_3D { get; set; }
     }
 
     public class FloorList