diff --git a/pqs-harmonic/harmonic-boot/src/main/java/com/njcn/harmonic/service/impl/THDistortionServiceImpl.java b/pqs-harmonic/harmonic-boot/src/main/java/com/njcn/harmonic/service/impl/THDistortionServiceImpl.java
index 473022c65..022c34406 100644
--- a/pqs-harmonic/harmonic-boot/src/main/java/com/njcn/harmonic/service/impl/THDistortionServiceImpl.java
+++ b/pqs-harmonic/harmonic-boot/src/main/java/com/njcn/harmonic/service/impl/THDistortionServiceImpl.java
@@ -135,11 +135,11 @@ public class THDistortionServiceImpl implements THDistortionService {
         /*监测点ID扁平化*/
         List<String> collect = deviceList.stream().map(GeneralDeviceDTO::getLineIndexes).flatMap(Collection::stream).distinct().collect(Collectors.toList());
         QueryWrapper<RMpVThd> wrapper = new QueryWrapper<>();
-        wrapper.select ("measurement_point_id","max(v_thd)")
+        wrapper.select ("measurement_point_id","max(v_thd) as v_thd")
                 .in("measurement_point_id", collect)
                 .between("data_date", statisticsBizBaseParam.getStartTime(), statisticsBizBaseParam.getEndTime())
                 .eq("data_type", 0).groupBy ("measurement_point_id")
-                .orderByDesc("max(v_thd)");
+                .orderByDesc("v_thd");
         List<RMpVThd> rMpVThdList = rMpVThdMapper.selectList(wrapper);
         rMpVThdVOList = rMpVThdList.stream().limit(topNum).map(rMpVThd -> {
             RMpVThdVO rMpVThdVO = new RMpVThdVO();