diff --git a/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/mapper/DeviceMapper.java b/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/mapper/DeviceMapper.java
index ad28481b..b846c205 100644
--- a/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/mapper/DeviceMapper.java
+++ b/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/mapper/DeviceMapper.java
@@ -137,4 +137,13 @@ public interface DeviceMapper extends BaseMapper<Device> {
     List<DeviceUsageFrequencyVo> getDeviceUsageFrequency(@Param("days") int days);
 
     List<OnlineStatusVo> queryOnlineStatusList();
+
+    /**
+     * 根据设备类型ID查询设备数量
+     *
+     * @param deviceTypeId 设备类型ID
+     * @return 设备数量
+     */
+    int countByDeviceTypeId(@Param("deviceTypeId") Long deviceTypeId);
+
 }
\ No newline at end of file
diff --git a/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/service/impl/DeviceTypeServiceImpl.java b/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/service/impl/DeviceTypeServiceImpl.java
index d0f3815f..e4c7f4cc 100644
--- a/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/service/impl/DeviceTypeServiceImpl.java
+++ b/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/service/impl/DeviceTypeServiceImpl.java
@@ -224,6 +224,16 @@ public class DeviceTypeServiceImpl extends ServiceImpl<DeviceTypeMapper, DeviceT
             throw new RuntimeException("设备类型不存在");
         }
 
+
+
+        if (!deviceType.getTypeName().equals(resources.getTypeName())) {
+            int count = deviceMapper.countByDeviceTypeId(deviceType.getId());
+            if (count > 0) {
+                throw new RuntimeException("该设备类型下已有绑定设备，无法修改设备类型名称!!!");
+            }
+        }
+
+
         // List<Device> devices = deviceMapper.selectList(new QueryWrapper<Device>()
         //         .eq("device_type", deviceTypeGrants.getDeviceTypeId()));
         // if (CollectionUtil.isNotEmpty(devices)) {
diff --git a/fys-modules/fys-equipment/src/main/resources/mapper/equipment/DeviceMapper.xml b/fys-modules/fys-equipment/src/main/resources/mapper/equipment/DeviceMapper.xml
index b57f59e2..44059604 100644
--- a/fys-modules/fys-equipment/src/main/resources/mapper/equipment/DeviceMapper.xml
+++ b/fys-modules/fys-equipment/src/main/resources/mapper/equipment/DeviceMapper.xml
@@ -497,4 +497,11 @@
         FROM device a left join device_type b on a.device_type = b.id where b.communication_mode in (0, 2) and a.online_status in (1,2)
     </select>
 
+    <!-- 根据设备类型ID查询设备数量 -->
+    <select id="countByDeviceTypeId" resultType="int">
+        SELECT COUNT(*)
+        FROM device
+        WHERE device_type = #{deviceTypeId}
+    </select>
+
 </mapper>
\ No newline at end of file