diff --git a/lis-interfaceCommon/src/main/resources/mapper/LabReqsteplogMapper.xml b/lis-interfaceCommon/src/main/resources/mapper/LabReqsteplogMapper.xml
index a2d9fe1..c654ba8 100644
--- a/lis-interfaceCommon/src/main/resources/mapper/LabReqsteplogMapper.xml
+++ b/lis-interfaceCommon/src/main/resources/mapper/LabReqsteplogMapper.xml
@@ -9,7 +9,7 @@
         select * from lab_reqsteplog where sqh = #{sqh}
     </select>
     <select id="getLabReqsteplogMax" resultType="Integer">
-        select xh from lab_reqsteplog where sqh = #{sqh}
+        select MAX(xh) from lab_reqsteplog where sqh = #{sqh}
     </select>
     <insert id="insertLabReqsteplog" parameterType="com.czlis.common.core.domain.entity.lis.LabReqsteplog">
         insert into lab_reqsteplog (sqh, xh, zt, userid,