diff --git a/lib/wxpay.js b/lib/wxpay.js
index 969ac13..f2967cb 100644
--- a/lib/wxpay.js
+++ b/lib/wxpay.js
@@ -76,6 +76,26 @@ WXPay.mix('createUnifiedOrder', function(opts, fn){
 	});
 });
 
+WXPay.mix('cardPay', function(opts, fn){
+
+	opts.nonce_str = opts.nonce_str || util.generateNonceString();
+	util.mix(opts, this.wxpayID);
+	opts.sign = this.sign(opts);
+
+	request({
+		url: "https://api.mch.weixin.qq.com/pay/micropay",
+		method: 'POST',
+		body: util.buildXML(opts),
+		agentOptions: {
+			pfx: this.options.pfx,
+			passphrase: this.options.mch_id
+		}
+	}, function(err, response, body){
+		console.log(body);
+		util.parseXML(body, fn);
+	});
+});
+
 WXPay.mix('getBrandWCPayRequestParams', function(order, fn){
 
 	order.trade_type = "JSAPI";