diff --git a/ecs/dataimport/dataimport/chk.py b/ecs/dataimport/dataimport/chk.py
index 834207ef..6f71a0de 100644
--- a/ecs/dataimport/dataimport/chk.py
+++ b/ecs/dataimport/dataimport/chk.py
@@ -90,6 +90,9 @@ def check(bucket_name, target_data_source, target_file_name, settings_key, log_i
         settings_list = []
         for line in io.TextIOWrapper(io.BytesIO(settings_obj_response["Body"].read()), encoding='utf-8'):
             settings_list.append(line.rstrip('\n'))
+        # 設定ファイルに記載のない行を空文字として扱い、予約行とする
+        for _ in range(len(SETTINGS_ITEM) - len(settings_list)):
+            settings_list.append('')
 
         work_key = target_data_source + DIRECTORY_WORK + target_file_name
         work_obj_response = s3_client.get_object(