diff --git a/Src/Dlhis.Basic/Device/Controllers/DevicePermissionsController.cs b/Src/Dlhis.Basic/Device/Controllers/DevicePermissionsController.cs
index 06701a75..2cced022 100644
--- a/Src/Dlhis.Basic/Device/Controllers/DevicePermissionsController.cs
+++ b/Src/Dlhis.Basic/Device/Controllers/DevicePermissionsController.cs
@@ -109,9 +109,9 @@ public class DevicePermissionsController : ControllerBase
     /// <param name="deviceUniqueNo"></param>
     [HttpGet("gainfo-all")]
     [IgnoreTenant]
-    public async Task GetDeviceUserCodesAsync(string deviceUniqueNo)
+    public async Task<List<string>> GetDeviceUserCodesAsync(string deviceUniqueNo)
     {
-        await _devicePermissionService.GetDeviceUserCodesAsync(deviceUniqueNo);
+        return await _devicePermissionService.GetDeviceUserCodesAsync(deviceUniqueNo);
     }
 
     [HttpGet("userPermissionCodes")]
diff --git a/Src/Dlhis.Basic/Device/Services/Implements/DevicePermissionService.cs b/Src/Dlhis.Basic/Device/Services/Implements/DevicePermissionService.cs
index ba03d183..0d632232 100644
--- a/Src/Dlhis.Basic/Device/Services/Implements/DevicePermissionService.cs
+++ b/Src/Dlhis.Basic/Device/Services/Implements/DevicePermissionService.cs
@@ -474,7 +474,7 @@ public class DevicePermissionService : IDevicePermissionService
         device.ThrowIfNull("设备不存在");
 
         var userIds = await GetDeviceUserIdsAsync(deviceUniqueNo);
-        return userIds.Select(x => x.ToString()).ToList();
+
         var devicePermissionManuallyUserNos = await _dbContext.Queryable<GainfoEntity>()
             .Where(x => SqlFunc.Subqueryable<DevicePermissionManuallyEntity>()
                 .Where(p => p.DeviceCode == device.Code)