diff --git a/api/@ohos.multimedia.audio.d.ts b/api/@ohos.multimedia.audio.d.ts
index e25e77e07181a248e875e76199089f3ca6302911..cb1e2c504eeaaa825b89cad766a7a2a1981b09cf 100644
--- a/api/@ohos.multimedia.audio.d.ts
+++ b/api/@ohos.multimedia.audio.d.ts
@@ -794,6 +794,12 @@ declare namespace audio {
      * @since 18
      */
     REMOTE_DAUDIO = 29,
+    /**
+     * Hearding aid audio device.
+     * @syscap SystemCapability.Multimedia.Audio.Device
+     * @since 20
+     */
+    HEARDING_AID = 30,
     /**
      * Default device type.
      * @syscap SystemCapability.Multimedia.Audio.Device