diff --git a/.changelog/3277.txt b/.changelog/3277.txt
new file mode 100644
index 0000000000..5d4042c3e9
--- /dev/null
+++ b/.changelog/3277.txt
@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/tencentcloud_tat_command: update doc
+```
\ No newline at end of file
diff --git a/tencentcloud/services/tat/resource_tc_tat_command.go b/tencentcloud/services/tat/resource_tc_tat_command.go
index ee68af431b..069e515385 100644
--- a/tencentcloud/services/tat/resource_tc_tat_command.go
+++ b/tencentcloud/services/tat/resource_tc_tat_command.go
@@ -33,7 +33,7 @@ func ResourceTencentCloudTatCommand() *schema.Resource {
 			"content": {
 				Type:        schema.TypeString,
 				Required:    true,
-				Description: "Base64-encoded command. The maximum length is 64 KB.",
+				Description: "Command content. The maximum length is 64 KB.",
 			},
 
 			"description": {
@@ -45,7 +45,7 @@ func ResourceTencentCloudTatCommand() *schema.Resource {
 			"command_type": {
 				Type:        schema.TypeString,
 				Optional:    true,
-				Description: "Command type. `SHELL` and `POWERSHELL` are supported. The default value is `SHELL`.",
+				Description: "Command type. `SHELL`, `POWERSHELL` and `BAT` are supported. The default value is `SHELL`.",
 			},
 
 			"working_directory": {
diff --git a/website/docs/r/tat_command.html.markdown b/website/docs/r/tat_command.html.markdown
index 938bcc20c2..00198a4e6b 100644
--- a/website/docs/r/tat_command.html.markdown
+++ b/website/docs/r/tat_command.html.markdown
@@ -41,8 +41,8 @@ EOF
 The following arguments are supported:
 
 * `command_name` - (Required, String) Command name. The name can be up to 60 bytes, and contain [a-z], [A-Z], [0-9] and [_-.].
-* `content` - (Required, String) Base64-encoded command. The maximum length is 64 KB.
-* `command_type` - (Optional, String) Command type. `SHELL` and `POWERSHELL` are supported. The default value is `SHELL`.
+* `content` - (Required, String) Command content. The maximum length is 64 KB.
+* `command_type` - (Optional, String) Command type. `SHELL`, `POWERSHELL` and `BAT` are supported. The default value is `SHELL`.
 * `default_parameters` - (Optional, String) The default value of the custom parameter value when it is enabled. The field type is JSON encoded string. For example, {"varA": "222"}.`key` is the name of the custom parameter and value is the default value. Both `key` and `value` are strings.If no parameter value is provided in the `InvokeCommand` API, the default value is used.Up to 20 custom parameters are supported.The name of the custom parameter cannot exceed 64 characters and can contain [a-z], [A-Z], [0-9] and [-_].
 * `description` - (Optional, String) Command description. The maximum length is 120 characters.
 * `enable_parameter` - (Optional, Bool) Whether to enable the custom parameter feature.This cannot be modified once created.Default value: `false`.