diff --git a/braintree.md b/braintree.md
index 2364131..e42e358 100644
--- a/braintree.md
+++ b/braintree.md
@@ -7,6 +7,20 @@
 
 ### Request
 
+|参数名|M/C/O|描述|
+|---|---|---|
+|callbackUrl|O|客户端网页同步回调地址，支付完成后同步跳转，显示支付结果|
+|ipnUrl|M|交易结果异步通知地址|
+|amount|M|金额，字符串|
+|currency|M|标价币种|
+|settleCurrency|M|结算币种|
+|description|O|订单描述|
+|note|O|附言|
+|reference|M|商户系统交易请求流水号|
+|terminal|M|交易类型|
+|vendor|M|支付/收款方式|
+|verifySign|API请求签名|
+
 ```json
 {
     "amount": "100",
@@ -30,6 +44,11 @@
 * authorization是用来在付款页面调用braintree js sdk，用户填信用卡信息
 * [HTML付款页面示例](./static/braintree-sample.html)
 
+|参数名|M/C/O|描述|
+|---|---|---|
+|authorization|M|令牌，用于调用braintree JS SDK|
+|transactionNo|M|订单号|
+
 ```json
 {
     "result":
@@ -64,6 +83,23 @@
 |SAMSUNG Pay|samsung_pay_card|
 
 
+|参数名|M/C/O|描述|
+|---|---|---|
+|deviceData|M|braintree sdk获取到的客户端设备信息，参见html示例代码｜
+|paymentMethod|M|支付方式|
+|paymentMethodNonce|M|支付令牌，从braintree sdk获取得到|
+|transactionNo|M|订单号，从secure-pay返回得到|
+|addressLine1|O|address line 1|
+|addressLine2|O|address line 2|
+|city|O|city|
+|state|O|state|
+|postalCode|O|邮编|
+|country|O|country|
+|countryCode|O|countryCode, e.g. CN|
+|email|O|email|
+|firstName|O|firstName|
+|lastName|O|lastName|
+
 ```json
 {
     "addressLine1": "123 main st",