diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/http/weixin/WeixinRequestExecutor.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/http/weixin/WeixinRequestExecutor.java
index c058041d..1002d472 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/http/weixin/WeixinRequestExecutor.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/http/weixin/WeixinRequestExecutor.java
@@ -39,6 +39,7 @@ import com.foxinmy.weixin4j.logging.InternalLogLevel;
 import com.foxinmy.weixin4j.logging.InternalLogger;
 import com.foxinmy.weixin4j.logging.InternalLoggerFactory;
 import com.foxinmy.weixin4j.util.Consts;
+import com.foxinmy.weixin4j.util.StringUtil;
 import org.bouncycastle.jce.provider.BouncyCastleProvider;
 import static java.util.regex.Pattern.CASE_INSENSITIVE;
 
@@ -218,10 +219,13 @@ public class WeixinRequestExecutor {
 			try {
 				XmlResult xmlResult = XmlMessageConverter.GLOBAL.convert(
 						XmlResult.class, response);
-				if (!SUCCESS_CODE.contains(String.format(",%s,", xmlResult
-						.getResultCode().toLowerCase()))) {
-					throw new WeixinException(xmlResult.getErrCode(),
-							xmlResult.getErrCodeDes());
+				// 微信最新的刷脸支付API中已没有返回resultCode，需做非空判断，否则抛异常
+				if(StringUtil.isNotBlank(xmlResult.getResultCode())) {
+					if (!SUCCESS_CODE.contains(String.format(",%s,", xmlResult
+							.getResultCode().toLowerCase()))) {
+						throw new WeixinException(xmlResult.getErrCode(),
+								xmlResult.getErrCodeDes());
+					}
 				}
 			} catch (IOException e) {
 				;
diff --git a/weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/WeixinPayProxy.java b/weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/WeixinPayProxy.java
index 6e68c7e3..7c0f80a8 100644
--- a/weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/WeixinPayProxy.java
+++ b/weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/WeixinPayProxy.java
@@ -7,6 +7,8 @@ import com.foxinmy.weixin4j.http.weixin.XmlResult;
 import com.foxinmy.weixin4j.pay.model.WeixinPayAccount;
 import com.foxinmy.weixin4j.model.paging.Pageable;
 import com.foxinmy.weixin4j.pay.payment.coupon.*;
+import com.foxinmy.weixin4j.pay.payment.face.PayfaceAuthinfo;
+import com.foxinmy.weixin4j.pay.payment.face.PayfaceAuthinfoRequest;
 import com.foxinmy.weixin4j.pay.payment.mch.*;
 import com.foxinmy.weixin4j.pay.sign.WeixinSignature;
 import com.foxinmy.weixin4j.pay.type.*;
@@ -815,5 +817,33 @@ public class WeixinPayProxy {
 		return customsApi.queryCustomsOrder(idQuery, customsCity);
 	}
 
+	/**
+	 * 微信刷脸支付，获取调用凭证
+	 *
+	 * @param storeId
+	 * 			门店编号， 由商户定义， 各门店唯一。
+	 * @param storeName
+	 * 			门店名称，由商户定义。（可用于展示）
+	 * @param deviceId
+	 * 			终端设备编号，由商户定义。
+	 * @param rawdata
+	 * 			初始化数据。由微信人脸SDK的接口返回。
+	 * @return SDK调用凭证
+	 * @throws WeixinException
+	 * @see <a href=
+	 * 		"https://pay.weixin.qq.com/wiki/doc/wxfacepay/develop/sdk-android.html#获取数据-getwxpayfacerawdata">
+	 *      获取数据-getwxpayfacerawdata</a>
+	 * @see <a href=
+	 *      "https://pay.weixin.qq.com/wiki/doc/wxfacepay/develop/sdk-android.html#获取调用凭证-get-wxpayface-authinfo">
+	 *      获取调用凭证-get-wxpayface-authinfo</a>
+	 * @see PayfaceAuthinfo
+	 */
+	public PayfaceAuthinfo getWxPayfaceAuthinfo(String storeId, String storeName, String deviceId,
+												String rawdata) throws WeixinException {
+		PayfaceAuthinfoRequest request = new PayfaceAuthinfoRequest(this.weixinPayAccount, storeId, storeName, deviceId,
+				rawdata);
+		return payApi.getWxPayfaceAuthinfo(request);
+	}
+
 	public final static String VERSION = Consts.VERSION;
 }
diff --git a/weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/api/PayApi.java b/weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/api/PayApi.java
index 7d5f0ebc..c326b3d0 100644
--- a/weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/api/PayApi.java
+++ b/weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/api/PayApi.java
@@ -7,6 +7,7 @@ import com.foxinmy.weixin4j.http.weixin.WeixinResponse;
 import com.foxinmy.weixin4j.http.weixin.XmlResult;
 import com.foxinmy.weixin4j.pay.model.WeixinPayAccount;
 import com.foxinmy.weixin4j.pay.payment.face.PayfaceAuthinfo;
+import com.foxinmy.weixin4j.pay.payment.face.PayfaceAuthinfoRequest;
 import com.foxinmy.weixin4j.pay.payment.mch.*;
 import com.foxinmy.weixin4j.pay.type.mch.BillType;
 import com.foxinmy.weixin4j.pay.type.mch.RefundAccountType;
diff --git a/weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/payment/face/PayfaceAuthinfo.java b/weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/payment/face/PayfaceAuthinfo.java
index ff17d707..2fdd46bf 100644
--- a/weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/payment/face/PayfaceAuthinfo.java
+++ b/weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/payment/face/PayfaceAuthinfo.java
@@ -33,4 +33,12 @@ public class PayfaceAuthinfo extends MerchantResult {
      *     人脸支付凭证(getWxpayfaceCode)</a>
      */
     private String authinfo;
+
+    @Override
+    public String toString() {
+        return "PayfaceAuthinfo{" +
+                "expiresIn=" + expiresIn +
+                ", authinfo='" + authinfo + '\'' +
+                '}';
+    }
 }
diff --git a/weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/payment/mch/PayfaceAuthinfoRequest.java b/weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/payment/face/PayfaceAuthinfoRequest.java
similarity index 93%
rename from weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/payment/mch/PayfaceAuthinfoRequest.java
rename to weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/payment/face/PayfaceAuthinfoRequest.java
index b9325289..33e78e4b 100644
--- a/weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/payment/mch/PayfaceAuthinfoRequest.java
+++ b/weixin4j-pay/src/main/java/com/foxinmy/weixin4j/pay/payment/face/PayfaceAuthinfoRequest.java
@@ -1,6 +1,7 @@
-package com.foxinmy.weixin4j.pay.payment.mch;
+package com.foxinmy.weixin4j.pay.payment.face;
 
 import com.foxinmy.weixin4j.pay.model.WeixinPayAccount;
+import com.foxinmy.weixin4j.pay.sign.WeixinPaymentSignature;
 import com.foxinmy.weixin4j.pay.type.SignType;
 import com.foxinmy.weixin4j.util.*;
 
@@ -47,6 +48,8 @@ public class PayfaceAuthinfoRequest {
      */
     private String rawdata;
 
+    private WeixinPaymentSignature paymentSignature;
+
     public PayfaceAuthinfoRequest(WeixinPayAccount account, String storeId, String storeName, String deviceId,
                                   String rawdata){
         this.payAccount = account;
@@ -54,6 +57,7 @@ public class PayfaceAuthinfoRequest {
         this.rawdata = rawdata;
         this.storeId = storeId;
         this.storeName = storeName;
+        this.paymentSignature = new WeixinPaymentSignature(account.getPaySignKey());
     }
 
     public void setAttach(String attach) {
@@ -108,8 +112,6 @@ public class PayfaceAuthinfoRequest {
         if(StringUtil.isNotBlank(attach)) {
             map.put("attach", attach);
         }
-        return DigestUtil.MD5(
-                String.format("%s&key=%s", MapUtil.toJoinString(map, false, true),
-                        payAccount.getPaySignKey())).toUpperCase();
+        return paymentSignature.sign(map);
     }
 }