diff --git a/pay-java-ali/README.md b/pay-java-ali/README.md
index bebaa86..e7a2f5e 100644
--- a/pay-java-ali/README.md
+++ b/pay-java-ali/README.md
@@ -113,6 +113,18 @@
         Map appOrderInfo = service.orderInfo(payOrder);
         /*-----------/APP-------------------*/
 
+``` 
+#### 小程序支付
+
+```java
+
+        /*-----------APP-------------------*/
+        payOrder.setTransactionType(AliTransactionType.MINAPP);
+        payOrder.setOpenid("支付宝小程序授权登录成功后获取到的支付宝 user_id")
+        //获取小程序支付所需的信息组，直接给小程序网页端就可使用
+        Map appOrderInfo = service.orderInfo(payOrder);
+        /*-----------/APP-------------------*/
+
 ``` 
 
 #### 即时到帐 WAP 网页支付
diff --git a/pay-java-ali/src/main/java/com/egzosn/pay/ali/api/AliPayService.java b/pay-java-ali/src/main/java/com/egzosn/pay/ali/api/AliPayService.java
index 06cd7b5..7cc5075 100644
--- a/pay-java-ali/src/main/java/com/egzosn/pay/ali/api/AliPayService.java
+++ b/pay-java-ali/src/main/java/com/egzosn/pay/ali/api/AliPayService.java
@@ -213,6 +213,11 @@ public class AliPayService extends BasePayService<AliPayConfigStorage> {
                 bizContent.put(PASSBACK_PARAMS, order.getAddition());
                 bizContent.put(PRODUCT_CODE, "QUICK_MSECURITY_PAY");
                 break;
+            case MINAPP:
+                bizContent.put("extend_params", order.getAddition());
+                bizContent.put("buyer_id", order.getOpenid());
+                bizContent.put(PRODUCT_CODE, "FACE_TO_FACE_PAYMENT");
+                break;
             case BAR_CODE:
             case WAVE_CODE:
             case SECURITY_CODE:
@@ -223,7 +228,7 @@ public class AliPayService extends BasePayService<AliPayConfigStorage> {
 
         }
         if (null != order.getExpirationTime()) {
-            bizContent.put("timeout_express", DateUtils.minutesRemaining(order.getExpirationTime()) + "m");
+            bizContent.put(order.getTransactionType() == AliTransactionType.SWEEPPAY ? "qr_code_timeout_express" : "timeout_express", DateUtils.minutesRemaining(order.getExpirationTime()) + "m");
         }
         orderInfo.put(BIZ_CONTENT, JSON.toJSONString(bizContent));
         orderInfo.putAll(order.getAttrs());
diff --git a/pay-java-ali/src/main/java/com/egzosn/pay/ali/bean/AliTransactionType.java b/pay-java-ali/src/main/java/com/egzosn/pay/ali/bean/AliTransactionType.java
index bb722de..2073ba3 100644
--- a/pay-java-ali/src/main/java/com/egzosn/pay/ali/bean/AliTransactionType.java
+++ b/pay-java-ali/src/main/java/com/egzosn/pay/ali/bean/AliTransactionType.java
@@ -44,6 +44,10 @@ public enum  AliTransactionType implements TransactionType {
      * 声波付
      */
     WAVE_CODE("alipay.trade.pay"),
+    /**
+     * 小程序
+     */
+    MINAPP("alipay.trade.create"),
     /**
      * 刷脸付
      */
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/bean/PayOrder.java b/pay-java-common/src/main/java/com/egzosn/pay/common/bean/PayOrder.java
index dd550be..1982763 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/bean/PayOrder.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/bean/PayOrder.java
@@ -71,6 +71,7 @@ public class PayOrder implements Order {
     /**
      * 用户唯一标识
      * 微信含 sub_openid 字段
+     * 支付宝 buyer_id
      */
     private String openid;
     /**