diff --git a/docs/en/08-operation/04-maintenance.md b/docs/en/08-operation/04-maintenance.md
index 5712a710a1..a0aa473918 100644
--- a/docs/en/08-operation/04-maintenance.md
+++ b/docs/en/08-operation/04-maintenance.md
@@ -16,8 +16,8 @@ TDengine is designed for various writing scenarios, and many of these scenarios
 ### Syntax
 
 ```sql
-COMPACT DATABASE db_name [start with 'XXXX'] [end with 'YYYY'];
-COMPACT [db_name.]VGROUPS IN (vgroup_id1, vgroup_id2, ...) [start with 'XXXX'] [end with 'YYYY'];
+COMPACT DATABASE db_name [start with 'XXXX'] [end with 'YYYY'] [META_ONLY];
+COMPACT [db_name.]VGROUPS IN (vgroup_id1, vgroup_id2, ...) [start with 'XXXX'] [end with 'YYYY'] [META_ONLY];
 SHOW COMPACTS;
 SHOW COMPACT compact_id;
 KILL COMPACT compact_id;
@@ -30,6 +30,7 @@ KILL COMPACT compact_id;
 - COMPACT will merge multiple STT files
 - You can specify the start time of the COMPACT data with the start with keyword
 - You can specify the end time of the COMPACT data with the end with keyword
+- You can specify the META_ONLY keyword to only compact the meta data which are not compacted by default
 - The COMPACT command will return the ID of the COMPACT task
 - COMPACT tasks are executed asynchronously in the background, and you can view the progress of COMPACT tasks using the SHOW COMPACTS command
 - The SHOW command will return the ID of the COMPACT task, and you can terminate the COMPACT task using the KILL COMPACT command
diff --git a/docs/zh/08-operation/04-maintenance.md b/docs/zh/08-operation/04-maintenance.md
index bb9ea20fbf..c0ca5ee00f 100644
--- a/docs/zh/08-operation/04-maintenance.md
+++ b/docs/zh/08-operation/04-maintenance.md
@@ -17,8 +17,8 @@ TDengine 面向多种写入场景，而很多写入场景下，TDengine 的存
 ### 语法
 
 ```SQL
-COMPACT DATABASE db_name [start with 'XXXX'] [end with 'YYYY'];
-COMPACT [db_name.]VGROUPS IN (vgroup_id1, vgroup_id2, ...) [start with 'XXXX'] [end with 'YYYY'];
+COMPACT DATABASE db_name [start with 'XXXX'] [end with 'YYYY'] [META_ONLY];
+COMPACT [db_name.]VGROUPS IN (vgroup_id1, vgroup_id2, ...) [start with 'XXXX'] [end with 'YYYY'] [META_ONLY];
 SHOW COMPACTS;
 SHOW COMPACT compact_id;
 KILL COMPACT compact_id;
@@ -32,6 +32,7 @@ KILL COMPACT compact_id;
 -   COMPACT 会合并多个 STT 文件
 -   可通过 start with 关键字指定 COMPACT 数据的起始时间
 -   可通过 end with 关键字指定 COMPACT 数据的终止时间
+-   可通过 `META_ONLY` 关键字指定只 compact 元数据。元数据默认情况下不会 compact。
 -   COMPACT 命令会返回 COMPACT 任务的 ID
 -   COMPACT 任务会在后台异步执行，可以通过 SHOW COMPACTS 命令查看 COMPACT 任务的进度
 -   SHOW 命令会返回 COMPACT 任务的 ID，可以通过 KILL COMPACT 命令终止 COMPACT 任务