diff --git a/BPA.SAAS.Manage.Application/AExternalPlatform/Service/CheckService/CheckServices.cs b/BPA.SAAS.Manage.Application/AExternalPlatform/Service/CheckService/CheckServices.cs
index fbf3825..51a6428 100644
--- a/BPA.SAAS.Manage.Application/AExternalPlatform/Service/CheckService/CheckServices.cs
+++ b/BPA.SAAS.Manage.Application/AExternalPlatform/Service/CheckService/CheckServices.cs
@@ -42,5 +42,15 @@ namespace BPA.SAAS.Manage.Application.AExternalPlatform.Service.CheckService
         {
             return await _checkServices.GetUserId(key);
         }
+
+        /// <summary>
+        /// 通过设备Id获取授权码
+        /// </summary>
+        /// <param name="deviceId"></param>
+        /// <returns></returns>
+        public async Task<string> GetAuthKey(int deviceId)
+        {
+            return await _checkServices.GetAuthKey(deviceId);
+        }
     }
 }
diff --git a/BPA.SAAS.Manage.Application/AExternalPlatform/Service/CheckService/Services/CheckServices.cs b/BPA.SAAS.Manage.Application/AExternalPlatform/Service/CheckService/Services/CheckServices.cs
index e9e7b91..ad7cdc0 100644
--- a/BPA.SAAS.Manage.Application/AExternalPlatform/Service/CheckService/Services/CheckServices.cs
+++ b/BPA.SAAS.Manage.Application/AExternalPlatform/Service/CheckService/Services/CheckServices.cs
@@ -13,6 +13,7 @@ using System.Threading.Tasks;
 using BPA.SAAS.KitChenManage.Core;
 using BPA.KitChen.GroupMeal.SqlSugar;
 using BPA.SAAS.Manage.Core.System;
+using BPA.SAAS.Manage.Core.Device;
 
 namespace BPA.SAAS.Manage.Application.AExternalPlatform.Service.CheckService.Services
 {
@@ -94,5 +95,16 @@ namespace BPA.SAAS.Manage.Application.AExternalPlatform.Service.CheckService.Ser
                 return null;
             return data.CreateBy;
         }
+
+        public async Task<string> GetAuthKey(int deviceId)
+        {
+            var deviceInfo = await SqlSugarDb.Db.Queryable<BPA_DeviceInfo>().ClearFilter().FirstAsync(t => t.AutoKey == deviceId);
+            if (deviceInfo == null)
+                throw Oops.Oh("设备不存在");
+            var auth = await SqlSugarDb.Db.Queryable<BPA_PlatformAuthorization>().ClearFilter().FirstAsync(t => t.GroupId == deviceInfo.GroupId);
+            if (auth == null)
+                throw Oops.Oh("不存在授权码");
+            return auth.Key;
+        }
     }
 }
diff --git a/BPA.SAAS.Manage.Application/AExternalPlatform/Service/CheckService/Services/ICheckServices.cs b/BPA.SAAS.Manage.Application/AExternalPlatform/Service/CheckService/Services/ICheckServices.cs
index ff640aa..dfa391e 100644
--- a/BPA.SAAS.Manage.Application/AExternalPlatform/Service/CheckService/Services/ICheckServices.cs
+++ b/BPA.SAAS.Manage.Application/AExternalPlatform/Service/CheckService/Services/ICheckServices.cs
@@ -25,5 +25,12 @@ namespace BPA.SAAS.Manage.Application.AExternalPlatform.Service.CheckService.Ser
         /// <param name="key"></param>
         /// <returns></returns>
         Task<string> GetUserId(string key);
+
+        /// <summary>
+        /// 通过设备Id获取授权码
+        /// </summary>
+        /// <param name="deviceId"></param>
+        /// <returns></returns>
+        Task<string> GetAuthKey(int deviceId);
     }
 }