diff --git a/en/application-dev/reference/apis/js-apis-window.md b/en/application-dev/reference/apis/js-apis-window.md
index 13edbc7a924ff1e0b5ad8ef7f3f6f2720eb49de2..076355e05fb10b53bac73c96029a6b19d8b1d6bb 100644
--- a/en/application-dev/reference/apis/js-apis-window.md
+++ b/en/application-dev/reference/apis/js-apis-window.md
@@ -3601,7 +3601,7 @@ When the screen brightness setting for the window takes effect, Control Panel ca
 
 | Name| Type| Mandatory| Description                                       |
 | ---------- | ------------------------- | -- |-------------------------------------------|
-| brightness | number                    | Yes| Brightness to set. The value is a floating point number in the range [0.0, 1.0], and the value **1.0** means the brightest.|
+| brightness | number                    | Yes| Brightness to set. The value is a floating point number in the range [0.0, 1.0] or -1.0, and the value **1.0** means the brightest, **-1.0** means the default brightest.|
 | callback   | AsyncCallback<void> | Yes| Callback used to return the result.                                    |
 
 **Error codes**
@@ -3644,7 +3644,7 @@ When the screen brightness setting for the window takes effect, Control Panel ca
 
 | Name| Type| Mandatory| Description                                    |
 | ---------- | ------ | -- |----------------------------------------|
-| brightness | number | Yes| Brightness to set. The value is a floating point number in the range [0.0, 1.0], and the value **1.0** indicates the brightest.|
+| brightness | number | Yes| Brightness to set. The value is a floating point number in the range [0.0, 1.0] or -1.0, and the value **1.0** means the brightest, **-1.0** means the default brightest.|
 
 **Return value**
 
@@ -6212,7 +6212,7 @@ When the screen brightness setting for the window takes effect, Control Panel ca
 
 | Name    | Type                     | Mandatory| Description                                   |
 | ---------- | ------------------------- | ---- |---------------------------------------|
-| brightness | number                    | Yes  | Brightness to set. The value is a floating point number in the range [0.0, 1.0], and the value **1.0** means the brightest.|
+| brightness | number                    | Yes  | Brightness to set. The value is a floating point number in the range [0.0, 1.0] or -1.0, and the value **1.0** means the brightest, **-1.0** means the default brightest.|
 | callback   | AsyncCallback<void> | Yes  | Callback used to return the result.                                |
 
 **Example**
@@ -6246,7 +6246,7 @@ When the screen brightness setting for the window takes effect, Control Panel ca
 
 | Name    | Type  | Mandatory| Description                                      |
 | ---------- | ------ | ---- |------------------------------------------|
-| brightness | number | Yes  | Brightness to set. The value is a floating point number in the range [0.0, 1.0], and the value **1.0** means the brightest.|
+| brightness | number | Yes  | Brightness to set. The value is a floating point number in the range [0.0, 1.0] or -1.0, and the value **1.0** means the brightest, **-1.0** means the default brightest.|
 
 **Return value**
 
diff --git a/zh-cn/application-dev/reference/apis/js-apis-window.md b/zh-cn/application-dev/reference/apis/js-apis-window.md
index b84c15c074619b562a23c23dbbaaa37e9ec5f3c4..71b378d496829962252afff3eb8efe7fd195eb7d 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-window.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-window.md
@@ -3785,7 +3785,7 @@ setWindowBrightness(brightness: number, callback: AsyncCallback<void>): vo
 
 | 参数名 | 类型 | 必填 | 说明                                        |
 | ---------- | ------------------------- | -- |-------------------------------------------|
-| brightness | number                    | 是 | 屏幕亮度值。该参数为浮点数，取值范围为[0.0, 1.0]。其取1.0时表示最亮。 |
+| brightness | number                    | 是 | 屏幕亮度值。该参数为浮点数，取值范围为[0.0, 1.0]或-1.0。1.0表示最亮，-1.0表示默认亮度。 |
 | callback   | AsyncCallback<void> | 是 | 回调函数。                                     |
 
 **错误码：**
@@ -3828,7 +3828,7 @@ setWindowBrightness(brightness: number): Promise<void>
 
 | 参数名 | 类型 | 必填 | 说明                                     |
 | ---------- | ------ | -- |----------------------------------------|
-| brightness | number | 是 | 屏幕亮度值。该参数为浮点数，取值范围为[0.0, 1.0]。1.0表示最亮。 |
+| brightness | number | 是 | 屏幕亮度值。该参数为浮点数，取值范围为[0.0, 1.0]或-1.0。1.0表示最亮，-1.0表示默认亮度。 |
 
 **返回值：**
 
@@ -6385,7 +6385,7 @@ setBrightness(brightness: number, callback: AsyncCallback<void>): void
 
 | 参数名     | 类型                      | 必填 | 说明                                    |
 | ---------- | ------------------------- | ---- |---------------------------------------|
-| brightness | number                    | 是   | 屏幕亮度值。该参数为浮点数，取值范围为[0.0, 1.0]。,1表示最亮。 |
+| brightness | number                    | 是   | 屏幕亮度值。该参数为浮点数，取值范围为[0.0, 1.0]或-1.0。1.0表示最亮，-1.0表示默认亮度。 |
 | callback   | AsyncCallback<void> | 是   | 回调函数。                                 |
 
 **示例：**
@@ -6419,7 +6419,7 @@ setBrightness(brightness: number): Promise<void>
 
 | 参数名     | 类型   | 必填 | 说明                                       |
 | ---------- | ------ | ---- |------------------------------------------|
-| brightness | number | 是   | 屏幕亮度值。该参数为浮点数。取值范围为[0.0, 1.0],取1.0时表示最亮。 |
+| brightness | number | 是   | 屏幕亮度值。该参数为浮点数，取值范围为[0.0, 1.0]或-1.0。1.0表示最亮，-1.0表示默认亮度。 |
 
 **返回值：**