diff --git a/emis-biz/src/main/resources/mapper/EmisSpecialCalcWeightMapper.xml b/emis-biz/src/main/resources/mapper/EmisSpecialCalcWeightMapper.xml
index 734ce5027..f223d48ed 100644
--- a/emis-biz/src/main/resources/mapper/EmisSpecialCalcWeightMapper.xml
+++ b/emis-biz/src/main/resources/mapper/EmisSpecialCalcWeightMapper.xml
@@ -149,7 +149,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
     <select id="checkUnique" parameterType="EmisSpecialCalcWeight"  resultType="int">
 		select count(1) from  emis_special_calc_weight
 		where del_flag='0'
-            <if test="id != null">id!=#{id}</if>
+            <if test="id != null"> and id!=#{id} </if>
            and prod_code = #{prodCode}
            and
              (