diff --git a/aucma-base/src/main/resources/mapper/base/BaseMonitorWorkUnitMapper.xml b/aucma-base/src/main/resources/mapper/base/BaseMonitorWorkUnitMapper.xml
index 681b7f2..2ca850d 100644
--- a/aucma-base/src/main/resources/mapper/base/BaseMonitorWorkUnitMapper.xml
+++ b/aucma-base/src/main/resources/mapper/base/BaseMonitorWorkUnitMapper.xml
@@ -48,6 +48,9 @@
     </select>
 
     <insert id="insertBaseMonitorWorkUnit" parameterType="BaseMonitorWorkUnit">
+        <selectKey keyProperty="objId" resultType="long" order="BEFORE">
+            SELECT seq_base_orderinfo.NEXTVAL as objId FROM DUAL
+        </selectKey>
         insert into base_monitor_work_unit
         <trim prefix="(" suffix=")" suffixOverrides=",">
                 <if test="objId != null">obj_id,</if>
@@ -110,4 +113,4 @@
             #{objId}
         </foreach>
     </delete>
-</mapper>
\ No newline at end of file
+</mapper>