diff --git a/hbt-safety-supervision/hbt-safety-supervision-biz/src/main/resources/mapper/MajorHazardSourcesMapper.xml b/hbt-safety-supervision/hbt-safety-supervision-biz/src/main/resources/mapper/MajorHazardSourcesMapper.xml
index bd5fb12..77e7ace 100644
--- a/hbt-safety-supervision/hbt-safety-supervision-biz/src/main/resources/mapper/MajorHazardSourcesMapper.xml
+++ b/hbt-safety-supervision/hbt-safety-supervision-biz/src/main/resources/mapper/MajorHazardSourcesMapper.xml
@@ -38,12 +38,32 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
     </select>
 
     <sql id="selectMajorHazardVo">
-        select id, name, danger_level, unified_coding, hazardous_chemicals_name,risk_factor, consequence ,control_measures ,enterprise, main_responsible_person_id, main_responsible_person ,technology_responsible_person,technology_responsible_person_id,operate_responsible_person_id,operate_responsible_person from major_hazard_sources
+        select distinct(a.id) id,
+                       a.name name,
+                       a.danger_level dangerLevel,
+                       a.unified_coding unifiedCoding,
+                       a.hazardous_chemicals_name hazardousChemicalsName,
+                       a.risk_factor riskFactor,
+                       a.consequence consequence ,
+                       a.control_measures controlMeasures,
+                       e.name enterprise,
+                        a.main_responsible_person_id mainResponsiblePersonId,
+                        p.name mainResponsiblePerson,
+                       p1.name technologyResponsiblePerson,
+               a.technology_responsible_person_id technologyResponsiblePersonId,
+               a.operate_responsible_person_id operateResponsiblePersonId,
+               p2.name operateResponsiblePerson
+        from major_hazard_sources as a
+        left join enterprise_information as e on a.enterprise_id = e.id
+        left join person as p on p.id = a.main_responsible_person_id
+        left join person as p1 on p1.id = a.main_responsible_person_id
+        left join person as p2 on p2.id = a.main_responsible_person_id
+
     </sql>
 
-    <select id="selectMajorHazardSourcesById" parameterType="String" resultMap="MajorHazardSourcesResult">
+    <select id="selectMajorHazardSourcesById" parameterType="String" resultType="MajorHazardSources">
         <include refid="selectMajorHazardVo"/>
-        where id = #{id}
+        where a.id = #{id}
     </select>
         
     <insert id="insertMajorHazardSources" parameterType="com.hbt.safety.supervision.pojo.MajorHazardSources">