diff --git a/zh-cn/application-dev/reference/apis/js-apis-bluetoothManager.md b/zh-cn/application-dev/reference/apis/js-apis-bluetoothManager.md
index 673a90540c0f1e82f1787f2a566d132192b480e5..fb54017d2ad0394fe5ae52160f9044d69fa4799f 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-bluetoothManager.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-bluetoothManager.md
@@ -893,7 +893,7 @@ try {
 
 on(type: "stateChange", callback: Callback<BluetoothState>): void
 
-订阅蓝牙连接状态改变事件。
+订阅蓝牙设备开关状态事件。
 
 **需要权限**：ohos.permission.USE_BLUETOOTH
 
@@ -932,7 +932,7 @@ try {
 
 off(type: "stateChange", callback?: Callback<BluetoothState>): void
 
-取消订阅蓝牙连接状态改变事件。
+取消订阅蓝牙设备开关状态事件。
 
 **需要权限**：ohos.permission.USE_BLUETOOTH
 
@@ -2075,7 +2075,7 @@ connect(device: string): void
 
 ```js
 try {
-    let hidHostProfile = bluetoothManager.getProfileInst(bluetoothManager.ProfileId.PROFILE_HID_HOST) as bluetoothManager.HidHostProfile;
+    let hidHostProfile = bluetoothManager.getProfileInstance(bluetoothManager.ProfileId.PROFILE_HID_HOST) as bluetoothManager.HidHostProfile;
     hidHostProfile.connect('XX:XX:XX:XX:XX:XX');
 } catch (err) {
     console.error("errCode:" + err.code + ",errMessage:" + err.message);
@@ -2116,7 +2116,7 @@ disconnect(device: string): void
 
 ```js
 try {
-    let hidHostProfile = bluetoothManager.getProfileInst(bluetoothManager.ProfileId.PROFILE_HID_HOST) as bluetoothManager.HidHostProfile;
+    let hidHostProfile = bluetoothManager.getProfileInstance(bluetoothManager.ProfileId.PROFILE_HID_HOST) as bluetoothManager.HidHostProfile;
     hidHostProfile.disconnect('XX:XX:XX:XX:XX:XX');
 } catch (err) {
     console.error("errCode:" + err.code + ",errMessage:" + err.message);
@@ -2145,7 +2145,7 @@ on(type: "connectionStateChange", callback: Callback<[StateChangeParam](#Stat
 function onReceiveEvent(data) {
     console.info('hidHost state = '+ JSON.stringify(data));
 }
-let hidHost = bluetoothManager.getProfileInst(bluetoothManager.ProfileId.PROFILE_HID_HOST) as bluetoothManager.HidHostProfile;
+let hidHost = bluetoothManager.getProfileInstance(bluetoothManager.ProfileId.PROFILE_HID_HOST) as bluetoothManager.HidHostProfile;
 hidHost.on('connectionStateChange', onReceiveEvent);
 ```
 
@@ -2171,7 +2171,7 @@ off(type: "connectionStateChange", callback?: Callback<[StateChangeParam](#St
 function onReceiveEvent(data) {
     console.info('hidHost state = '+ JSON.stringify(data));
 }
-let hidHost = bluetoothManager.getProfileInst(bluetoothManager.ProfileId.PROFILE_HID_HOST) as bluetoothManager.HidHostProfile;
+let hidHost = bluetoothManager.getProfileInstance(bluetoothManager.ProfileId.PROFILE_HID_HOST) as bluetoothManager.HidHostProfile;
 hidHost.on('connectionStateChange', onReceiveEvent);
 hidHost.off('connectionStateChange', onReceiveEvent);
 ```
@@ -2215,7 +2215,7 @@ disconnect(device: string): void
 
 ```js
 try {
-    let panProfile = bluetoothManager.getProfileInst(bluetoothManager.ProfileId.PROFILE_PAN_NETWORK) as bluetoothManager.PanProfile;
+    let panProfile = bluetoothManager.getProfileInstance(bluetoothManager.ProfileId.PROFILE_PAN_NETWORK) as bluetoothManager.PanProfile;
     panProfile.disconnect('XX:XX:XX:XX:XX:XX');
 } catch (err) {
     console.error("errCode:" + err.code + ",errMessage:" + err.message);
@@ -2244,7 +2244,7 @@ on(type: "connectionStateChange", callback: Callback<[StateChangeParam](#Stat
 function onReceiveEvent(data) {
     console.info('pan state = '+ JSON.stringify(data));
 }
-let panProfile = bluetoothManager.getProfileInst(bluetoothManager.ProfileId.PROFILE_PAN_NETWORK) as bluetoothManager.PanProfile;
+let panProfile = bluetoothManager.getProfileInstance(bluetoothManager.ProfileId.PROFILE_PAN_NETWORK) as bluetoothManager.PanProfile;
 panProfile.on('connectionStateChange', onReceiveEvent);
 ```
 
@@ -2270,7 +2270,7 @@ off(type: "connectionStateChange", callback?: Callback<[StateChangeParam](#St
 function onReceiveEvent(data) {
     console.info('pan state = '+ JSON.stringify(data));
 }
-let panProfile = bluetoothManager.getProfileInst(bluetoothManager.ProfileId.PROFILE_PAN_NETWORK) as bluetoothManager.PanProfile;
+let panProfile = bluetoothManager.getProfileInstance(bluetoothManager.ProfileId.PROFILE_PAN_NETWORK) as bluetoothManager.PanProfile;
 panProfile.on('connectionStateChange', onReceiveEvent);
 panProfile.off('connectionStateChange', onReceiveEvent);
 ```
@@ -2309,7 +2309,7 @@ setTethering(enable: boolean): void
 
 ```js
 try {
-    let panProfile = bluetoothManager.getProfileInst(bluetoothManager.ProfileId.PROFILE_PAN_NETWORK) as bluetoothManager.PanProfile;
+    let panProfile = bluetoothManager.getProfileInstance(bluetoothManager.ProfileId.PROFILE_PAN_NETWORK) as bluetoothManager.PanProfile;
     panProfile.setTethering(true);
 } catch (err) {
     console.error("errCode:" + err.code + ",errMessage:" + err.message);
@@ -2337,7 +2337,7 @@ isTetheringOn(): boolean
 
 ```js
 try {
-    let panProfile = bluetoothManager.getProfileInst(bluetoothManager.ProfileId.PROFILE_PAN_NETWORK) as bluetoothManager.PanProfile;
+    let panProfile = bluetoothManager.getProfileInstance(bluetoothManager.ProfileId.PROFILE_PAN_NETWORK) as bluetoothManager.PanProfile;
     let ret = panProfile.isTetheringOn();
 } catch (err) {
     console.error("errCode:" + err.code + ",errMessage:" + err.message);