diff --git a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/controller/YxSchoolController.java b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/controller/YxSchoolController.java
index eb1e043..fe3c3ce 100644
--- a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/controller/YxSchoolController.java
+++ b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/controller/YxSchoolController.java
@@ -190,39 +190,17 @@ public class YxSchoolController extends JeecgController<YxSchool, IYxSchoolServi
         LoginUser sysUser = (LoginUser) SecurityUtils.getSubject().getPrincipal();
         // 过滤选中数据
         String selections = request.getParameter("selections");
+        List<String> selectionList = new ArrayList<>();
         if (oConvertUtils.isNotEmpty(selections)) {
-            List<String> selectionList = Arrays.asList(selections.split(","));
-            queryWrapper.select(YxSchool::getId);
-            queryWrapper.select(YxSchool::getSchoolName);
-            queryWrapper.in(YxSchool::getId,selectionList);
+            selectionList = Arrays.asList(selections.split(","));
         }
-        List<YxSchool> exportList = service.list(queryWrapper);
-        Map<String, String> schoolIdMap = exportList.stream().collect(Collectors.toMap(YxSchool::getId, YxSchool::getSchoolName));
-
-        List<SchoolExportDTO> schoolExportDTOList =new ArrayList<>();
-        if (CollectionUtil.isNotEmpty(exportList)) {
-            List<String> schoolIdList = exportList.stream().map(YxSchool::getId).collect(Collectors.toList());
-            LambdaQueryWrapper<YxSchoolChild> lambdaQueryWrapper = new LambdaQueryWrapper<>();
-            lambdaQueryWrapper.in(YxSchoolChild::getSchoolId,schoolIdList);
-            lambdaQueryWrapper.orderByDesc(YxSchoolChild::getSchoolCode);
-            lambdaQueryWrapper.select(YxSchoolChild::getSchoolId,YxSchoolChild::getSchoolName,YxSchoolChild::getSchoolCode);
-            List<YxSchoolChild> schoolChildList = yxSchoolChildService.list(lambdaQueryWrapper);
-            SchoolExportDTO schoolExportDTO = null;
-            for (YxSchoolChild yxSchoolChild : schoolChildList) {
-                schoolExportDTO = new SchoolExportDTO();
-                schoolExportDTO.setSchoolName(yxSchoolChild.getSchoolName());
-                schoolExportDTO.setSchoolCode(yxSchoolChild.getSchoolCode());
-                schoolExportDTO.setMasterSchoolName(schoolIdMap.get(yxSchoolChild.getSchoolId()));
-                schoolExportDTOList.add(schoolExportDTO);
-            }
-        }
-
+        List<SchoolExportDTO> exportList = yxSchoolService.exportList(selectionList);
         ModelAndView mv = new ModelAndView(new JeecgEntityExcelView());
         mv.addObject(NormalExcelConstants.FILE_NAME, title);
         mv.addObject(NormalExcelConstants.CLASS, SchoolExportDTO.class);
         ExportParams exportParams=new ExportParams(title + "报表", "导出人:" + sysUser.getRealname(), title);
         mv.addObject(NormalExcelConstants.PARAMS,exportParams);
-        mv.addObject(NormalExcelConstants.DATA_LIST, schoolExportDTOList);
+        mv.addObject(NormalExcelConstants.DATA_LIST, exportList);
         return mv;
     }
 
diff --git a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/mapper/YxSchoolMapper.java b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/mapper/YxSchoolMapper.java
index ee3611a..f08888a 100644
--- a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/mapper/YxSchoolMapper.java
+++ b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/mapper/YxSchoolMapper.java
@@ -9,6 +9,7 @@ import org.jeecg.modules.web.dto.ArtHotSchoolDTO;
 import org.jeecg.modules.web.dto.ArtSchoolDTO;
 import org.jeecg.modules.web.vo.QueryRecommendMajorVO;
 import org.jeecg.modules.mini.dto.MiniSchoolDTO;
+import org.jeecg.modules.yx.dto.SchoolExportDTO;
 import org.jeecg.modules.yx.dto.YxSchoolDTO;
 import org.jeecg.modules.yx.entity.YxSchool;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
@@ -58,4 +59,6 @@ public interface YxSchoolMapper extends BaseMapper<YxSchool> {
     List<ArtHotSchoolDTO> artSchoolListBySchoolCodeList(@Param("schoolCodeList") List<String> schoolCodeList);
 
     IPage<YxSchool> queryPageList(@Param("page") Page<YxSchool> page, @Param("qvo") QueryRecommendMajorVO queryRecommendMajorVO);
+
+    List<SchoolExportDTO> exportList(List<String> schoolIdList);
 }
diff --git a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/mapper/xml/YxSchoolMapper.xml b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/mapper/xml/YxSchoolMapper.xml
index 543e4d8..a372091 100644
--- a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/mapper/xml/YxSchoolMapper.xml
+++ b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/mapper/xml/YxSchoolMapper.xml
@@ -488,4 +488,18 @@
         </where>
         ORDER BY s.create_time,s.update_time DESC
     </select>
+    <select id="exportList" resultType="org.jeecg.modules.yx.dto.SchoolExportDTO">
+        SELECT s.id,
+               s.school_name as master_school_name,
+               sc.school_code,sc.school_name
+               FROM yx_school s
+        LEFT JOIN yx_school_child sc ON sc.school_id = s.id
+        <where>
+            <if test="schoolIdList!=null and schoolIdList.size>0">
+                AND sc.school_id in
+                <foreach collection="schoolIdList" index="index" item="b" open="(" separator="," close=")">#{b}</foreach>
+            </if>
+
+        </where>
+    </select>
 </mapper>
diff --git a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/service/IYxSchoolService.java b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/service/IYxSchoolService.java
index c82bd92..2b32a47 100644
--- a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/service/IYxSchoolService.java
+++ b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/service/IYxSchoolService.java
@@ -6,6 +6,7 @@ import org.jeecg.modules.web.dto.ArtHotSchoolDTO;
 import org.jeecg.modules.web.dto.ArtSchoolDTO;
 import org.jeecg.modules.web.vo.QueryRecommendMajorVO;
 import org.jeecg.modules.mini.dto.MiniSchoolDTO;
+import org.jeecg.modules.yx.dto.SchoolExportDTO;
 import org.jeecg.modules.yx.dto.YxSchoolDTO;
 import org.jeecg.modules.yx.entity.YxSchool;
 import com.baomidou.mybatisplus.extension.service.IService;
@@ -41,5 +42,7 @@ public interface IYxSchoolService extends IService<YxSchool> {
 
     IPage<YxSchool> queryPageList(Page<YxSchool> page, QueryRecommendMajorVO queryRecommendMajorVO);
 
+    List<SchoolExportDTO> exportList(List<String> schoolIdList);
+
     //小程序代码=================================================
 }
diff --git a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/service/impl/YxSchoolServiceImpl.java b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/service/impl/YxSchoolServiceImpl.java
index d38987a..dd19ccd 100644
--- a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/service/impl/YxSchoolServiceImpl.java
+++ b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/yx/service/impl/YxSchoolServiceImpl.java
@@ -12,6 +12,7 @@ import org.jeecg.modules.web.dto.ArtHotSchoolDTO;
 import org.jeecg.modules.web.dto.ArtSchoolDTO;
 import org.jeecg.modules.web.vo.QueryRecommendMajorVO;
 import org.jeecg.modules.mini.dto.MiniSchoolDTO;
+import org.jeecg.modules.yx.dto.SchoolExportDTO;
 import org.jeecg.modules.yx.dto.YxSchoolDTO;
 import org.jeecg.modules.yx.entity.*;
 import org.jeecg.modules.yx.mapper.YxSchoolMapper;
@@ -157,6 +158,11 @@ public class YxSchoolServiceImpl extends ServiceImpl<YxSchoolMapper, YxSchool> i
         return baseMapper.queryPageList(page,queryRecommendMajorVO);
     }
 
+    @Override
+    public List<SchoolExportDTO> exportList(List<String> schoolIdList) {
+        return baseMapper.exportList(schoolIdList);
+    }
+
     ///==========================PC端
     @Override
     public IPage<ArtSchoolDTO> search(QueryRecommendMajorVO queryRecommendMajorVO) {