diff --git a/cmd_arg/arg.py b/cmd_arg/arg.py
index 047e4f2..266dd84 100644
--- a/cmd_arg/arg.py
+++ b/cmd_arg/arg.py
@@ -258,6 +258,14 @@ async def parse_cmd(argv: Optional[Sequence[str]] = None):
                 rich_help_panel="Comment Configuration",
             ),
         ] = config.CRAWLER_MAX_COMMENTS_COUNT_SINGLENOTES,
+        max_concurrency_num: Annotated[
+            int,
+            typer.Option(
+                "--max_concurrency_num",
+                help="Maximum number of concurrent crawlers",
+                rich_help_panel="Performance Configuration",
+            ),
+        ] = config.MAX_CONCURRENCY_NUM,
     ) -> SimpleNamespace:
         """MediaCrawler 命令行入口"""
 
@@ -283,6 +291,7 @@ async def parse_cmd(argv: Optional[Sequence[str]] = None):
         config.SAVE_DATA_OPTION = save_data_option.value
         config.COOKIES = cookies
         config.CRAWLER_MAX_COMMENTS_COUNT_SINGLENOTES = max_comments_count_singlenotes
+        config.MAX_CONCURRENCY_NUM = max_concurrency_num
 
         # Set platform-specific ID lists for detail/creator mode
         if specified_id_list: