diff --git a/src/main/resources/mapper/CameraChannelMapper.xml b/src/main/resources/mapper/CameraChannelMapper.xml
index dfbccd8..b2bd95e 100644
--- a/src/main/resources/mapper/CameraChannelMapper.xml
+++ b/src/main/resources/mapper/CameraChannelMapper.xml
@@ -25,8 +25,8 @@
     </update>
 
     <select id="selectNLAll" resultType="com.hisense.monitormanage.dto.CameraChannelNLDto">
-        SELECT a.label_name,d.* from t_label a RIGHT JOIN (select b.label_code,c.* from t_camera_channel c
-        LEFT JOIN t_channel_mtm_label b on c.channel_code = b.channel_code) d
+        SELECT a.label_name,d.* from t_label a JOIN (select b.label_code,c.* from t_camera_channel c
+        JOIN t_channel_mtm_label b on c.channel_code = b.channel_code where label_code != '') d
          on d.label_code = a.label_code
         <bind name="page" value="(page-1)*pageSize"/>
         limit #{page},#{pageSize}