diff --git a/api/@ohos.graphics.common2D.d.ts b/api/@ohos.graphics.common2D.d.ts
index 03b657014de55746c763f260d9db1568bd28073a..748f6ab57ef6d5481ef420d5eb40cef71d8304ff 100644
--- a/api/@ohos.graphics.common2D.d.ts
+++ b/api/@ohos.graphics.common2D.d.ts
@@ -197,17 +197,26 @@ declare namespace common2D {
     y: double;
   }
 
+  /**
+   * Provides the definition of the point in 3D.
+   *
+   * @typedef Point3d
+   * @extends Point
+   * @syscap SystemCapability.Graphics.Drawing
+   * @since 12
+   */
   /**
    * Describes a 3D coordinate point.
    *
    * @typedef Point3d
    * @extends Point
    * @syscap SystemCapability.Graphics.Drawing
-   * @since 12 dynamic
+   * @crossplatform
+   * @since 20 dynamic&static
    */
   interface Point3d extends Point {
     /**
-     * Z-axis coordinate. The value is a floating point number.
+     * Z-axis coordinate.
      * @type { double }
      * @syscap SystemCapability.Graphics.Drawing
      * @since 12
@@ -217,7 +226,7 @@ declare namespace common2D {
      * @type { double }
      * @syscap SystemCapability.Graphics.Drawing
      * @crossplatform
-     * @since 20 dynamic
+     * @since 20 dynamic&static
      */
     z: double;
   }