diff --git a/README.md b/README.md
index 533bce5..4013abd 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,8 @@
 react-native-uiwjs-alipay
 ===
 
+[![NPM Version](https://img.shields.io/npm/v/react-native-uiwjs-alipay.svg)](https://npmjs.org/package/jaywcjlove/react-native-uiwjs-alipay)
+
 基于 React Native 的宝支付插件。适用于商家在 App 应用中集成支付宝支付功能，商家 APP 调用支付宝提供的 SDK，SDK 再调用支付宝 APP 内的支付模块。如果用户已安装支付宝APP，商家APP会跳转到支付宝中完成支付，支付完后跳回到商家 APP 内，最后展示支付结果。如果用户没有安装支付宝 APP，商家 APP 内会调起支付宝网页支付收银台，用户登录支付宝账户，支付完后展示支付结果。完整实例 [Example](./example)
 
 ![](https://gw.alipayobjects.com/zos/skylark-tools/public/files/c0aa8379f5f57c55f1e5bf25e6f426d1.png)
@@ -113,6 +115,19 @@ async function authInfo() {
 }
 ```
 
+### `Alipay.getVersion` 获取 SDK 版本
+
+> `Alipay.getVersion: () => Promise<string>;`
+
+```js
+import Alipay from 'react-native-uiwjs-alipay';
+
+async function getVersion() {
+  const version = await Alipay.getVersion();
+  console.log('version:', version);
+}
+```
+
 ## 支付宝返回应用 iOS 设置
 
 - ⚠️ Android 端不需要做任何设置。
diff --git a/android/src/main/java/com/uiwjs/AlipayModule.java b/android/src/main/java/com/uiwjs/AlipayModule.java
index f50b14a..f3c7bfe 100644
--- a/android/src/main/java/com/uiwjs/AlipayModule.java
+++ b/android/src/main/java/com/uiwjs/AlipayModule.java
@@ -71,6 +71,12 @@ public class AlipayModule extends ReactContextBaseJavaModule {
         payThread.start();
     }
 
+    @ReactMethod
+    public void getVersion(Promise promise) {
+        PayTask payTask = new PayTask(getCurrentActivity());
+        promise.resolve(payTask.getVersion());
+    }
+
     private WritableMap getWritableMap(Map<String, String> map) {
         WritableMap writableMap = Arguments.createMap();
         for (Map.Entry<String, String> entry : map.entrySet()) {
diff --git a/example/App.js b/example/App.js
index f830055..60d4de0 100644
--- a/example/App.js
+++ b/example/App.js
@@ -3,6 +3,12 @@ import { Button, StyleSheet, Text, View, Linking, AppState } from 'react-native'
 import Alipay from 'react-native-uiwjs-alipay';
 
 export default class App extends Component {
+  constructor(props) {
+    super(props);
+    this.state = {
+      version: '',
+    }
+  }
   componentDidMount() {
     Alipay.setAlipayScheme('uiwjspay');
   }
@@ -18,6 +24,11 @@ export default class App extends Component {
     // resule => success=true&auth_code=9c11732de44f4f1790b63978b6fbOX53&result_code=200&alipay_open_id=20881001757376426161095132517425&user_id=2088003646494707
     console.log('authInfo:resule-->>>', resule);
   }
+  getVersion = async () => {
+    const version = await Alipay.getVersion();
+    this.setState({ version });
+    console.log('version:', version);
+  }
   render() {
     return (
       <View style={styles.container}>
@@ -34,6 +45,12 @@ export default class App extends Component {
           color="#841584"
           accessibilityLabel="Learn more about this purple button"
         />
+        <Button
+          onPress={this.getVersion}
+          title="获取 SDK 版本"
+          color="#841584"
+        />
+        <Text>{this.state.version}</Text>
       </View>
     );
   }
diff --git a/index.d.ts b/index.d.ts
index a14cb68..35ad038 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -126,6 +126,11 @@ export const Alipay: {
    * @returns result 支付宝回调结果 https://opendocs.alipay.com/open/218/105327
    */
   authInfo: (authInfoStr: string) => Promise<AuthResult>;
+  /**
+   *  获取当前 SDK 版本号
+   *  @return 当前 SDK 版本字符串
+   */
+  getVersion: () => Promise<string>;
   /**
    * 设置支付宝跳转Scheme，仅 iOS
    * @param scheme scheme = `ap` + `APPID`
diff --git a/index.js b/index.js
index 68b7e1d..e73399e 100644
--- a/index.js
+++ b/index.js
@@ -1,23 +1,30 @@
 import { NativeModules, Platform } from 'react-native';
 
 export default class Alipay {
-
   /**
-   * 支付宝端支付
+   * 支付
    * @param orderInfo 支付详情
-   * @param callback 支付宝回调结果  详情见 https://docs.open.alipay.com/204/105301
+   * @returns result 支付宝回调结果 https://docs.open.alipay.com/204/105301
    */
   static alipay(orderInfo) {
     return NativeModules.Alipay.alipay(orderInfo);
   }
 
   /**
-   * 支付宝授权请求信息
-   * @param infoStr 授权请求信息字串
-   * @param callback 授权结果回调  详情见 https://opendocs.alipay.com/open/218/105325
+   * 快速登录授权
+   * @param authInfoStr 验证详情
+   * @returns result 支付宝回调结果 详情见 https://opendocs.alipay.com/open/218/105325
    */
-  static authInfo(infoStr) {
-    return NativeModules.Alipay.authInfo(infoStr)
+  static authInfo(authInfoStr) {
+    return NativeModules.Alipay.authInfo(authInfoStr)
+  }
+
+  /**
+   *  获取当前版本号
+   *  @return 当前版本字符串
+   */
+  static getVersion() {
+    return NativeModules.Alipay.getVersion()
   }
 
   /**
diff --git a/ios/Alipay.m b/ios/Alipay.m
index 5303569..9f8ed81 100644
--- a/ios/Alipay.m
+++ b/ios/Alipay.m
@@ -20,6 +20,10 @@ RCT_EXPORT_MODULE()
     self = [super init];
     if (self) {
         [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleOpenURL:) name:@"RCTOpenURLNotification" object:nil];
+        // 反注释下面代码，可以输出支付宝 SDK 调试信息，便于诊断问题
+        // [AlipaySDK startLogWithBlock:^(NSString* log){
+        //      NSLog(@"%@", log);
+        // }];
     }
     return self;
 }
@@ -80,7 +84,7 @@ RCT_EXPORT_MODULE()
     return NO;
 }
 
-RCT_EXPORT_METHOD(setAlipayScheme:(NSString *)scheme){
+RCT_EXPORT_METHOD(setAlipayScheme:(NSString *)scheme) {
     alipayScheme = scheme;
 }
 
@@ -97,6 +101,10 @@ RCT_EXPORT_METHOD(authInfo:(NSString *)info resolver:(RCTPromiseResolveBlock)res
     }];
 }
 
+RCT_EXPORT_METHOD(getVersion: (RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject) {
+    resolve([[AlipaySDK defaultService] currentVersion]);
+}
+
 /*! 
  * [warn][tid:main][RCTModuleData.mm:68] Module Alipay requires main queue setup since it overrides `init` but doesn't implement `requiresMainQueueSetup`. 
  * In a future release React Native will default to initializing all native modules on a background thread unless explicitly opted-out of.