diff --git a/klp-wms/src/main/java/com/klp/service/impl/WmsCoilWarehouseOperationLogServiceImpl.java b/klp-wms/src/main/java/com/klp/service/impl/WmsCoilWarehouseOperationLogServiceImpl.java
index 12560609..2a022111 100644
--- a/klp-wms/src/main/java/com/klp/service/impl/WmsCoilWarehouseOperationLogServiceImpl.java
+++ b/klp-wms/src/main/java/com/klp/service/impl/WmsCoilWarehouseOperationLogServiceImpl.java
@@ -182,12 +182,28 @@ public class WmsCoilWarehouseOperationLogServiceImpl implements IWmsCoilWarehous
 
     private Set<Long> getAllChildWarehouseIds(Long parentId) {
         Set<Long> result = new HashSet<>();
+        if (parentId == null) {
+            return result;
+        }
         result.add(parentId);
         LambdaQueryWrapper<WmsActualWarehouse> lqw = Wrappers.lambdaQuery();
-        lqw.eq(WmsActualWarehouse::getParentId, parentId);
-        List<WmsActualWarehouse> children = wmsActualWarehouseMapper.selectList(lqw);
-        for (WmsActualWarehouse child : children) {
-            result.addAll(getAllChildWarehouseIds(child.getActualWarehouseId()));
+        lqw.select(WmsActualWarehouse::getActualWarehouseId, WmsActualWarehouse::getParentId);
+        List<WmsActualWarehouse> allWarehouses = wmsActualWarehouseMapper.selectList(lqw);
+        Map<Long, List<Long>> parentChildrenMap = allWarehouses.stream()
+            .filter(w -> w.getParentId() != null)
+            .collect(java.util.stream.Collectors.groupingBy(
+                WmsActualWarehouse::getParentId,
+                java.util.stream.Collectors.mapping(WmsActualWarehouse::getActualWarehouseId, java.util.stream.Collectors.toList())
+            ));
+        java.util.Queue<Long> queue = new java.util.LinkedList<>();
+        queue.offer(parentId);
+        while (!queue.isEmpty()) {
+            Long currentId = queue.poll();
+            List<Long> children = parentChildrenMap.get(currentId);
+            if (children != null && !children.isEmpty()) {
+                result.addAll(children);
+                queue.addAll(children);
+            }
         }
         return result;
     }