diff --git a/inventory-backend/app/api/v1/inbound/semi.py b/inventory-backend/app/api/v1/inbound/semi.py
index faa7e58..dcf1cac 100644
--- a/inventory-backend/app/api/v1/inbound/semi.py
+++ b/inventory-backend/app/api/v1/inbound/semi.py
@@ -95,7 +95,16 @@ def get_list():
         )
         user_permissions = get_current_user_permissions()
         if result.get('items'):
-            result['items'] = [filter_item_by_permissions(item, user_permissions) for item in result['items']]
+            # ★ 字段权限过滤会剥离 base_id,但前端扫码/选物料联动需要它匹配历史批号
+            #   在过滤前保留 base_id,过滤后补回(非敏感字段,仅物料关联 ID)
+            preserved_items = []
+            for item in result['items']:
+                base_id = item.get('base_id')
+                filtered = filter_item_by_permissions(item, user_permissions)
+                if base_id is not None:
+                    filtered['base_id'] = base_id
+                preserved_items.append(filtered)
+            result['items'] = preserved_items
         return jsonify({"code": 200, "msg": "success", "data": result})
     except Exception as e:
         traceback.print_exc()