diff --git a/xm-core/src/main/resources/mybatis/mapper/xm/core/dao/XmTaskSbillMapper.xml b/xm-core/src/main/resources/mybatis/mapper/xm/core/dao/XmTaskSbillMapper.xml
index cbdc7072..f54f9b61 100644
--- a/xm-core/src/main/resources/mybatis/mapper/xm/core/dao/XmTaskSbillMapper.xml
+++ b/xm-core/src/main/resources/mybatis/mapper/xm/core/dao/XmTaskSbillMapper.xml
@@ -21,7 +21,7 @@
     </sql>
 
 	<update id="updateByWorkloadList" parameterType="List">
-		update xm_task_sbill res left join (
+		update xm_task_sbill res inner join (
 		select w.sbill_id,sum(ifnull(w.amt,0)) as amt,sum(ifnull(w.samt,0)) as samt,sum(ifnull(w.sworkload,0)) as workload from xm_task_workload w
 		where w.sbill_id in
 		<foreach collection="list" item="item" index="index" open="(" separator="," close=")" >