diff --git a/ym-packing/src/main/java/com/cnbm/packing/service/impl/WoPackagingBoxServiceBizImpl.java b/ym-packing/src/main/java/com/cnbm/packing/service/impl/WoPackagingBoxServiceBizImpl.java
index 052277b..9a245a1 100644
--- a/ym-packing/src/main/java/com/cnbm/packing/service/impl/WoPackagingBoxServiceBizImpl.java
+++ b/ym-packing/src/main/java/com/cnbm/packing/service/impl/WoPackagingBoxServiceBizImpl.java
@@ -142,13 +142,19 @@ public class WoPackagingBoxServiceBizImpl extends CrudServiceImpl<WoPackagingBox
         QueryWrapper<WoPackagingBoxSubstrate> wrapper = new QueryWrapper<>();
         wrapper.eq(StringUtils.isNotBlank(entity.getBoxNo()), WoPackagingBoxSubstrate.PACKAGING_BOX_ID, entity.getBoxNo());
         //重复上片基板去重
-//        wrapper.select("DISTINCT WO_SUBSTRATE_ID").orderByDesc("CREATE_TIME");
 //        wrapper.orderByAsc(WoPackagingBoxSubstrate.SLOT);
         List<WoPackagingBoxSubstrate> woPackagingBoxSubstrateList = substrateMapper.selectList(wrapper);
-        List<WoPackagingBoxSubstrate> distinctList = woPackagingBoxSubstrateList.stream().collect(
-                Collectors.collectingAndThen(
-                        Collectors.toCollection(() -> new TreeSet<>(Comparator.comparing(WoPackagingBoxSubstrate::getWoSubstrateId))), ArrayList::new)
-        );
+        List<WoPackagingBoxSubstrate> distinctList = new ArrayList<>();
+        Map<String, List<WoPackagingBoxSubstrate>> map = woPackagingBoxSubstrateList.stream().sorted(Comparator.comparing(WoPackagingBoxSubstrate::getCreateTime).reversed())
+                .collect(Collectors.groupingBy(WoPackagingBoxSubstrate::getWoSubstrateId));
+        for (Map.Entry<String, List<WoPackagingBoxSubstrate>> entry : map.entrySet()) {
+            //取list首并放入到新list中
+            distinctList.add(entry.getValue().get(0));
+        }
+//        List<WoPackagingBoxSubstrate> distinctList = woPackagingBoxSubstrateList.stream().collect(
+//                Collectors.collectingAndThen(
+//                        Collectors.toCollection(() -> new TreeSet<>(Comparator.comparing(WoPackagingBoxSubstrate::getWoSubstrateId))), ArrayList::new)
+//        );
         List<WoPackagingBoxSubstrate> sortedDistinctList = distinctList.stream().sorted(Comparator.comparing(WoPackagingBoxSubstrate::getSlot)).collect(Collectors.toList());
         dto.setSubstrateList(sortedDistinctList);
         return dto;