diff --git a/api/@ohos.app.form.FormExtensionAbility.d.ts b/api/@ohos.app.form.FormExtensionAbility.d.ts
index cbd0d1bd9cb2c650659b82cb974681ac3c4e3f13..0f307a4d94b5eb4c7b28273888048f8e3225978a 100644
--- a/api/@ohos.app.form.FormExtensionAbility.d.ts
+++ b/api/@ohos.app.form.FormExtensionAbility.d.ts
@@ -19,14 +19,28 @@
  */
 
 import formBindingData from './@ohos.app.form.formBindingData';
-/*** if arkts 1.1 */
 import formInfo from './@ohos.app.form.formInfo';
-/*** endif */
 import FormExtensionContext from './application/FormExtensionContext';
 import Want from './@ohos.app.ability.Want';
-/*** if arkts 1.1 */
 import { Configuration } from './@ohos.app.ability.Configuration';
-/*** endif */
+
+/**
+ * Called to return a {@link FormState} object.
+ * <p>You must override this callback if you want this ability to return the actual form state. Otherwise,
+ * this method returns {@link FormState#DEFAULT} by default.</p>
+ *
+ * @typedef { function }
+ * @param { Want } want - Indicates the description of the form for which the {@link formInfo#FormState}
+ *                        is obtained. The description covers the bundle name, ability name, module name,
+ *                        form name, and form dimensions.
+ * @returns { formInfo.FormState } Returns the {@link formInfo#FormState} object.
+ * @syscap SystemCapability.Ability.Form
+ * @stagemodelonly
+ * @atomicservice
+ * @since 20
+ * @arkts 1.2
+ */
+type OnAcquireFormStateFn = (want: Want) => formInfo.FormState;
 
 /**
  * Called when this ability breaks the last link, notifying the provider that the provider process is about to stop.
@@ -254,7 +268,8 @@ declare class FormExtensionAbility {
    * @syscap SystemCapability.Ability.Form
    * @stagemodelonly
    * @atomicservice
-   * @since 11
+   * @since arkts{ '1.1':'11','1.2':'20'}
+   * @arkts 1.1&1.2
    */
   onConfigurationUpdate(newConfig: Configuration): void;
 
@@ -341,6 +356,20 @@ declare class FormExtensionAbility {
    */
   onStop?(): void;
 
+  /**
+   * Called to return a {@link FormState} object.
+   * <p>You must override this callback if you want this ability to return the actual form state. Otherwise,
+   * this method returns {@link FormState#DEFAULT} by default.</p>
+   *
+   * @type { ?OnAcquireFormStateFn }
+   * @syscap SystemCapability.Ability.Form
+   * @stagemodelonly
+   * @atomicservice
+   * @since 20
+   * @arkts 1.2
+   */
+  onAcquireFormState?: OnAcquireFormStateFn;
+
   /**
    * Called when this ability breaks the last link, notifying the provider that the provider process is about to stop.
    *