diff --git a/docs/documentation/cn/installing/install-deploy.md b/docs/documentation/cn/installing/install-deploy.md
index 3317b5325a..ef94f3f531 100644
--- a/docs/documentation/cn/installing/install-deploy.md
+++ b/docs/documentation/cn/installing/install-deploy.md
@@ -254,6 +254,8 @@ FE 分为 Leader，Follower 和 Observer 三种角色。 默认一个集群，
 
 `./bin/start_fe.sh --helper host:port --daemon`
 
+其中 host 为 Leader 所在节点 ip, port 为 Leader 的配置文件 fe.conf 中的 edit_log_port。--helper 参数仅在 follower 和 observer 第一次启动时才需要。
+
 查看 Follower 或 Observer 运行状态。使用 mysql-client 连接到任一已启动的 FE，并执行：SHOW PROC '/frontends'; 可以查看当前已加入集群的 FE 及其对应角色。
 
 > FE 扩容注意事项：  
diff --git a/docs/documentation/en/installing/install-deploy_EN.md b/docs/documentation/en/installing/install-deploy_EN.md
index c2cc247627..695c32b27a 100644
--- a/docs/documentation/en/installing/install-deploy_EN.md
+++ b/docs/documentation/en/installing/install-deploy_EN.md
@@ -258,6 +258,8 @@ Configure and start Follower or Observer. Follower and Observer are configured w
 
 `./bin/start_fe.sh --helper host:port --daemon`
 
+The host is the node IP of Leader, and the port is edit\_log\_port in Lead's configuration file fe.conf. The --helper is only required when follower/observer is first startup.
+
 View the status of Follower or Observer. Connect to any booted FE using mysql-client and execute: SHOW PROC'/frontends'; you can view the FE currently joined the cluster and its corresponding roles.
 
 > Notes for FE expansion: