diff --git a/src/main/java/com/genersoft/iot/vmp/storager/dao/DeviceChannelMapper.java b/src/main/java/com/genersoft/iot/vmp/storager/dao/DeviceChannelMapper.java
index 421cdad2..bdc45bf2 100644
--- a/src/main/java/com/genersoft/iot/vmp/storager/dao/DeviceChannelMapper.java
+++ b/src/main/java/com/genersoft/iot/vmp/storager/dao/DeviceChannelMapper.java
@@ -459,8 +459,8 @@ public interface DeviceChannelMapper {
             "select * " +
             "from wvp_device_channel " +
             "where device_id=#{deviceId}" +
-            " <if test='parentId != null '> and parent_id = #{parentId} </if>" +
-            " <if test='parentId == null '> and parent_id is null </if>" +
+            " <if test='parentId != null and parentId != deviceId'> and parent_id = #{parentId} </if>" +
+            " <if test='parentId == null or parentId == deviceId'> and parent_id is null or parent_id = #{deviceId}</if>" +
             " <if test='onlyCatalog == true '> and parental = 1 </if>" +
             " </script>"})
     List<DeviceChannel> getSubChannelsByDeviceId(String deviceId, String parentId, boolean onlyCatalog);