diff --git a/springboot/wumei-iot/src/main/java/com/ruoyi/iot/mapper/DeviceMapper.java b/springboot/wumei-iot/src/main/java/com/ruoyi/iot/mapper/DeviceMapper.java
index b2266d1c..7ede8158 100644
--- a/springboot/wumei-iot/src/main/java/com/ruoyi/iot/mapper/DeviceMapper.java
+++ b/springboot/wumei-iot/src/main/java/com/ruoyi/iot/mapper/DeviceMapper.java
@@ -180,7 +180,7 @@ public interface DeviceMapper
      * @param deviceIds
      * @return
      */
-    public int deleteDeviceGroupByDeviceId(UserIdAndDeviceIdModel userIdAndDeviceIdModel);
+    public int deleteDeviceGroupByDeviceId(UserIdDeviceIdModel userDeviceGroupIdModel);
 
     /**
      * 重置设备状态
diff --git a/springboot/wumei-iot/src/main/java/com/ruoyi/iot/mapper/DeviceUserMapper.java b/springboot/wumei-iot/src/main/java/com/ruoyi/iot/mapper/DeviceUserMapper.java
index 2f9504e2..19fe2b19 100644
--- a/springboot/wumei-iot/src/main/java/com/ruoyi/iot/mapper/DeviceUserMapper.java
+++ b/springboot/wumei-iot/src/main/java/com/ruoyi/iot/mapper/DeviceUserMapper.java
@@ -2,7 +2,7 @@ package com.ruoyi.iot.mapper;
 
 import java.util.List;
 import com.ruoyi.iot.domain.DeviceUser;
-import com.ruoyi.iot.model.UserIdAndDeviceIdModel;
+import com.ruoyi.iot.model.UserIdDeviceIdModel;
 import org.apache.ibatis.annotations.Param;
 import org.springframework.stereotype.Repository;
 
@@ -53,7 +53,7 @@ public interface DeviceUserMapper
      * @param UserIdAndDeviceIdModel 用户ID和设备ID
      * @return 结果
      */
-    public int deleteDeviceUserByDeviceId(UserIdAndDeviceIdModel userIdAndDeviceIdModel);
+    public int deleteDeviceUserByDeviceId(UserIdDeviceIdModel userDeviceGroupIdModel);
 
     /**
      * 批量删除设备用户
diff --git a/springboot/wumei-iot/src/main/java/com/ruoyi/iot/model/UserIdAndDeviceIdModel.java b/springboot/wumei-iot/src/main/java/com/ruoyi/iot/model/UserIdDeviceIdModel.java
similarity index 84%
rename from springboot/wumei-iot/src/main/java/com/ruoyi/iot/model/UserIdAndDeviceIdModel.java
rename to springboot/wumei-iot/src/main/java/com/ruoyi/iot/model/UserIdDeviceIdModel.java
index 1f06fdda..7ba75b9d 100644
--- a/springboot/wumei-iot/src/main/java/com/ruoyi/iot/model/UserIdAndDeviceIdModel.java
+++ b/springboot/wumei-iot/src/main/java/com/ruoyi/iot/model/UserIdDeviceIdModel.java
@@ -6,17 +6,18 @@ package com.ruoyi.iot.model;
  * @author kerwincui
  * @date 2021-12-16
  */
-public class UserIdAndDeviceIdModel
+public class UserIdDeviceIdModel
 {
     private Long userId;
 
     private Long deviceId;
 
-    public UserIdAndDeviceIdModel(Long userId,Long deviceId){
+    public UserIdDeviceIdModel(Long userId, Long deviceId){
         this.userId=userId;
         this.deviceId=deviceId;
     }
 
+
     public Long getUserId() {
         return userId;
     }
diff --git a/springboot/wumei-iot/src/main/java/com/ruoyi/iot/service/impl/DeviceServiceImpl.java b/springboot/wumei-iot/src/main/java/com/ruoyi/iot/service/impl/DeviceServiceImpl.java
index 55e7f8ec..c1d1940a 100644
--- a/springboot/wumei-iot/src/main/java/com/ruoyi/iot/service/impl/DeviceServiceImpl.java
+++ b/springboot/wumei-iot/src/main/java/com/ruoyi/iot/service/impl/DeviceServiceImpl.java
@@ -6,7 +6,6 @@ import com.ruoyi.common.constant.Constants;
 import com.ruoyi.common.core.domain.AjaxResult;
 import com.ruoyi.common.core.domain.entity.SysRole;
 import com.ruoyi.common.core.domain.entity.SysUser;
-import com.ruoyi.common.core.domain.model.LoginUser;
 import com.ruoyi.common.utils.DateUtils;
 import com.ruoyi.common.utils.StringUtils;
 import com.ruoyi.common.utils.http.HttpUtils;
@@ -867,18 +866,17 @@ public class DeviceServiceImpl implements IDeviceService {
                 break;
             }
         }
-
         Device device=deviceMapper.selectDeviceByDeviceId(deviceId);
         if(isGeneralUser && device.getUserId().longValue()!=user.getUserId()){
-            // 删除用户的设备用户信息。  普通用户，且不是设备所有者。
-            deviceUserMapper.deleteDeviceUserByDeviceId(new UserIdAndDeviceIdModel(user.getUserId(),deviceId));
-            // 删除用户的设备分组
-            deviceMapper.deleteDeviceGroupByDeviceId(new UserIdAndDeviceIdModel(user.getUserId(),deviceId));
+            // 删除用户分组中的设备 普通用户，且不是设备所有者。
+            deviceMapper.deleteDeviceGroupByDeviceId(new UserIdDeviceIdModel(user.getUserId(),deviceId));
+            // 删除用户的设备用户信息。
+            deviceUserMapper.deleteDeviceUserByDeviceId(new UserIdDeviceIdModel(user.getUserId(),deviceId));
         }else{
-            // 删除设备用户。  租户、管理员和设备所有者
-            deviceUserMapper.deleteDeviceUserByDeviceId(new UserIdAndDeviceIdModel(null,deviceId));
-            // 删除设备分组。
-            deviceMapper.deleteDeviceGroupByDeviceId(new UserIdAndDeviceIdModel(null,deviceId));
+            // 删除设备分组。  租户、管理员和设备所有者
+            deviceMapper.deleteDeviceGroupByDeviceId(new UserIdDeviceIdModel(null,deviceId));
+            // 删除设备用户。
+            deviceUserMapper.deleteDeviceUserByDeviceId(new UserIdDeviceIdModel(null,deviceId));
             // 删除定时任务
             deviceJobService.deleteJobByDeviceIds(new Long[]{deviceId});
             // 批量删除设备日志
diff --git a/springboot/wumei-iot/src/main/java/com/ruoyi/iot/service/impl/DeviceUserServiceImpl.java b/springboot/wumei-iot/src/main/java/com/ruoyi/iot/service/impl/DeviceUserServiceImpl.java
index fccc8cf4..a829c827 100644
--- a/springboot/wumei-iot/src/main/java/com/ruoyi/iot/service/impl/DeviceUserServiceImpl.java
+++ b/springboot/wumei-iot/src/main/java/com/ruoyi/iot/service/impl/DeviceUserServiceImpl.java
@@ -4,13 +4,12 @@ import com.ruoyi.common.core.domain.entity.SysUser;
 import com.ruoyi.common.utils.DateUtils;
 import com.ruoyi.iot.domain.DeviceUser;
 import com.ruoyi.iot.mapper.DeviceUserMapper;
-import com.ruoyi.iot.model.UserIdAndDeviceIdModel;
+import com.ruoyi.iot.model.UserIdDeviceIdModel;
 import com.ruoyi.iot.service.IDeviceUserService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.dao.DuplicateKeyException;
 import org.springframework.stereotype.Service;
 
-import java.sql.SQLIntegrityConstraintViolationException;
 import java.util.List;
 
 import static com.ruoyi.common.utils.SecurityUtils.getLoginUser;
@@ -104,7 +103,7 @@ public class DeviceUserServiceImpl implements IDeviceUserService
     @Override
     public int deleteDeviceUserByDeviceId(Long deviceId)
     {
-        return deviceUserMapper.deleteDeviceUserByDeviceId(new UserIdAndDeviceIdModel(null,deviceId));
+        return deviceUserMapper.deleteDeviceUserByDeviceId(new UserIdDeviceIdModel(null,deviceId));
     }
 
     @Override
diff --git a/springboot/wumei-iot/src/main/resources/mapper/iot/DeviceMapper.xml b/springboot/wumei-iot/src/main/resources/mapper/iot/DeviceMapper.xml
index 6fae9f62..bf01efdd 100644
--- a/springboot/wumei-iot/src/main/resources/mapper/iot/DeviceMapper.xml
+++ b/springboot/wumei-iot/src/main/resources/mapper/iot/DeviceMapper.xml
@@ -447,11 +447,11 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         select count(*) from iot_device where serial_number = #{deviceNum}
     </select>
 
-    <delete id="deleteDeviceGroupByDeviceId" parameterType="com.ruoyi.iot.model.UserIdAndDeviceIdModel">
+    <delete id="deleteDeviceGroupByDeviceId" parameterType="com.ruoyi.iot.model.UserIdDeviceIdModel">
         delete from iot_device_group
         <where>
             <if test="1==1"> and device_id = #{deviceId}</if>
-            <if test="userId != null">user_id = #{userId}</if>
+            <if test="userId != null"> and group_id in(select group_id from iot_group where user_id = #{userId})</if>
         </where>
     </delete>
 </mapper>
\ No newline at end of file
diff --git a/springboot/wumei-iot/src/main/resources/mapper/iot/DeviceUserMapper.xml b/springboot/wumei-iot/src/main/resources/mapper/iot/DeviceUserMapper.xml
index 96920e1f..33139f4c 100644
--- a/springboot/wumei-iot/src/main/resources/mapper/iot/DeviceUserMapper.xml
+++ b/springboot/wumei-iot/src/main/resources/mapper/iot/DeviceUserMapper.xml
@@ -104,11 +104,11 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         where device_id = #{deviceId} and user_id = #{userId}
     </update>
 
-    <delete id="deleteDeviceUserByDeviceId" parameterType="com.ruoyi.iot.model.UserIdAndDeviceIdModel">
+    <delete id="deleteDeviceUserByDeviceId" parameterType="com.ruoyi.iot.model.UserIdDeviceIdModel">
         delete from iot_device_user
         <where>
             <if test="1==1"> and device_id = #{deviceId}</if>
-            <if test="userId != null">user_id = #{userId}</if>
+            <if test="userId != null"> and user_id = #{userId}</if>
         </where>
     </delete>