diff --git a/etc/mix/mix-test.yaml b/etc/mix/mix-test.yaml
index 197203d8..8815e9bb 100644
--- a/etc/mix/mix-test.yaml
+++ b/etc/mix/mix-test.yaml
@@ -32,34 +32,7 @@ wxpay:
   appid: "wxc28fd8aaf31984b6"
   serial_no: "51D8E75620B9569F10FF5363022F3C9D2152DF50"
   apiv3_key: "UoaswgnuKYwIadqxCVag1IZlq5n9USvt"
-  private_key: "-----BEGIN PRIVATE KEY-----
-MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQDgxWmqIZVZEVdO
-/XNOzc66UkyYAS6/LzTAWP6WW/wIfilaDSDAe99jUspFKl1YmubJkDJ5Y2WaHcOy
-irgfYX3GHMrr1x7vtqON6eQPiGShlf9HlOQCdi1zmUrBeMWj5Tcll+ldyazYaqR4
-yG6ahhj1BnsqZ+W6Sa9xtTfMtTUrBvJuHm4dWAQR62A2Teetk9YN9cxiOwL7BXaJ
-o5hYaumNobz7pIz6XHqBgEhBH6Qv8ka746NOR1UFSvMeqHWv+uyBzUthdIKFLCRE
-gQmFToXs7oJsuF2nshZKnMPta3Xvi8wbPbAZc4b4KwLLv9SxBKiRhztagF8KqYn1
-k4RB8mFDAgMBAAECggEAFfMxXmvpKcmHvS8DE68FgSyITk/PQNxbSm1mb0iMVEf9
-wc2GZUWziv+KwTZh50U5RHXQeAo84dAGTGk/kdDzd2VYa6+WVdKAJluw6dNoAF+l
-jlf77EGeLqvJoRsqMdcwi3tKTt5jAr9nUGRCaNSvmz4GyR1cUdTgTTplOJh5mLnm
-GGZQPVR87pex00QCTtQ7dggG/vg8QM+XbBeSAkWByeUDsrCo4pKbsY+kxKGCkhV0
-3hxgHz2v7QZ8kanbgVPZzB76tOxRf9ghUQ5TFPc9kjgtQmn5ViqzMTXdotFXlE/u
-n82BreEK03E9kWE3Uvt9jf21oJkQGQsRqTNYd8uIAQKBgQDyNOIIOnOgwt3coiZk
-LYmo+F/zQQm6R8gebYWO1XCKLkMto9JaeJyEpehZQngMJvJc4r+4tWNFv8rcOHu5
-/7SnteVUJK4RBXpKosLqswqD0ySEXzNLloumvxXz8HnXIiTSQ3rtISQSHzp0uunq
-fkTzezc9ZRT08Jx6rmLvpKsJ3QKBgQDtklbus1fRQ/zbdddKbTfYMZsWSi7qQiA3
-AKM7rY6wrS1gUJtVk9mhNgUe0uIvkkdQvtm/QKiSrtgGkre59g9sekZppCyWId6a
-i1tlFvkG16Oc/TsAJDBNJgtWrkPDsjjHSx2VExTeRJ30XGd8lx3EEWHEbSboGPbf
-G3gxm9a1nwKBgAdH06uPpj4k3WpubV0BiWvM24WCZPp2get4O1WJ0PI2ZcqPbBlQ
-GtRZ8FwOhXFIEmz8W+r/eNZ153ErOXzj1NhdvWEEIT9dvMlVjypi62P/Cs/31KDn
-C5edktlcVy1CV30CjkVmg6EP00ADBlkIJqZzA7wSt8iNGwcNCuhNON75AoGBAOGA
-GXIj24RwM1Agr8UenHZix6HFsnh7YdazjT11RU7gYoTcnkUBvP5vpzaV10puX7D+
-JvOJrTjmK3k5xJkIPaWq/rEBu6yZ45DwHEV9I81h3BSErX852nswVGznprzXq1tI
-KoE5BoLfwMqU90nkqsVT9mgbb2W5ZINrsI/uK0RjAoGBAL+9L8iJx6/M4yQosTrQ
-IL6SOxPU3HlfkqZzObiQ8vs7VdIpGhB1EMc9UEKe8RcnpTUeLsVeNHdiDZzRHtJ3
-RxZS/AsjJtYAZ2f/maJhgQsh6JN1AceDhMhx1iTsjr/ockyUZuXKiCr5Q43tzrMJ
-tMrOrkquEUSn+XDIomat7Bnw
------END PRIVATE KEY-----"
+  private_key_path: "/app/wishpal-ironfan/etc/mix/wxpaycert/apiclient_key.pem"
   notify_url: "https://api.wishpal.cn/ext/vas/wxpay_callback"
 
 crypto:
diff --git a/library/configcenter/configcenter.go b/library/configcenter/configcenter.go
index 49e9a27e..c7fc8294 100644
--- a/library/configcenter/configcenter.go
+++ b/library/configcenter/configcenter.go
@@ -63,12 +63,12 @@ type RedisConfig struct {
 
 // 微信支付客户端配置
 type WxpayClientConfig struct {
-	MchId      string `json:"mchid" yaml:"mchid"`             // 商户id
-	AppId      string `json:"appid" yaml:"appid"`             // appid
-	SerialNo   string `json:"serial_no" yaml:"serial_no"`     // 商户API证书的证书序列号
-	ApiV3Key   string `json:"apiv3_key" yaml:"apiv3_key"`     // APIv3Key，商户平台获取
-	PrivateKey string `json:"private_key" yaml:"private_key"` // 商户API证书下载后，私钥 apiclient_key.pem 读取后的字符串内容
-	NotifyUrl  string `json:"notify_url" yaml:"notify_url"`   // 回调地址
+	MchId          string `json:"mchid" yaml:"mchid"`                       // 商户id
+	AppId          string `json:"appid" yaml:"appid"`                       // appid
+	SerialNo       string `json:"serial_no" yaml:"serial_no"`               // 商户API证书的证书序列号
+	ApiV3Key       string `json:"apiv3_key" yaml:"apiv3_key"`               // APIv3Key，商户平台获取
+	PrivateKeyPath string `json:"private_key_path" yaml:"private_key_path"` // 商户API证书下载后，私钥 apiclient_key.pem 读取后的字符串内容
+	NotifyUrl      string `json:"notify_url" yaml:"notify_url"`             // 回调地址
 }
 
 // 账号相关验密配置
diff --git a/library/payclients/wxpaycli/client.go b/library/payclients/wxpaycli/client.go
index 61a45be0..d5ed24a2 100644
--- a/library/payclients/wxpaycli/client.go
+++ b/library/payclients/wxpaycli/client.go
@@ -3,6 +3,7 @@ package wxpaycli
 import (
 	"context"
 	"net/http"
+	"os"
 	"time"
 
 	"github.com/go-pay/gopay"
@@ -30,7 +31,15 @@ func GetDefaultWxpayClient() *WxpayClient {
 }
 
 func Init(cfg *configcenter.WxpayClientConfig) (err error) {
-	wxpayCli, err := wxpay.NewClientV3(cfg.MchId, cfg.SerialNo, cfg.ApiV3Key, cfg.PrivateKey)
+	// private key
+	bs, err := os.ReadFile(cfg.PrivateKeyPath)
+	if err != nil {
+		logger.Error("real PrivateKeyPath fail, cfg: %v, err: %v", util.ToJson(cfg), err)
+		return
+	}
+	privateKey := string(bs)
+
+	wxpayCli, err := wxpay.NewClientV3(cfg.MchId, cfg.SerialNo, cfg.ApiV3Key, privateKey)
 	if err != nil {
 		logger.Error("NewClientV3 fail, cfg: %v, err: %v", util.ToJson(cfg), err)
 		return
diff --git a/library/payclients/wxpaycli/client_test.go b/library/payclients/wxpaycli/client_test.go
index 597584be..c8874ccf 100644
--- a/library/payclients/wxpaycli/client_test.go
+++ b/library/payclients/wxpaycli/client_test.go
@@ -4,48 +4,20 @@ import (
 	"context"
 	"fmt"
 	"os"
+	"service/app/mix/conf"
 	"service/library/configcenter"
 	"service/library/idgenerator"
 	"testing"
 )
 
 func TestMain(m *testing.M) {
-	cfg := &configcenter.WxpayClientConfig{
-		MchId:    "1665016206",
-		AppId:    "wxc28fd8aaf31984b6",
-		SerialNo: "51D8E75620B9569F10FF5363022F3C9D2152DF50",
-		ApiV3Key: "UoaswgnuKYwIadqxCVag1IZlq5n9USvt",
-		PrivateKey: `-----BEGIN PRIVATE KEY-----
-MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQDgxWmqIZVZEVdO
-/XNOzc66UkyYAS6/LzTAWP6WW/wIfilaDSDAe99jUspFKl1YmubJkDJ5Y2WaHcOy
-irgfYX3GHMrr1x7vtqON6eQPiGShlf9HlOQCdi1zmUrBeMWj5Tcll+ldyazYaqR4
-yG6ahhj1BnsqZ+W6Sa9xtTfMtTUrBvJuHm4dWAQR62A2Teetk9YN9cxiOwL7BXaJ
-o5hYaumNobz7pIz6XHqBgEhBH6Qv8ka746NOR1UFSvMeqHWv+uyBzUthdIKFLCRE
-gQmFToXs7oJsuF2nshZKnMPta3Xvi8wbPbAZc4b4KwLLv9SxBKiRhztagF8KqYn1
-k4RB8mFDAgMBAAECggEAFfMxXmvpKcmHvS8DE68FgSyITk/PQNxbSm1mb0iMVEf9
-wc2GZUWziv+KwTZh50U5RHXQeAo84dAGTGk/kdDzd2VYa6+WVdKAJluw6dNoAF+l
-jlf77EGeLqvJoRsqMdcwi3tKTt5jAr9nUGRCaNSvmz4GyR1cUdTgTTplOJh5mLnm
-GGZQPVR87pex00QCTtQ7dggG/vg8QM+XbBeSAkWByeUDsrCo4pKbsY+kxKGCkhV0
-3hxgHz2v7QZ8kanbgVPZzB76tOxRf9ghUQ5TFPc9kjgtQmn5ViqzMTXdotFXlE/u
-n82BreEK03E9kWE3Uvt9jf21oJkQGQsRqTNYd8uIAQKBgQDyNOIIOnOgwt3coiZk
-LYmo+F/zQQm6R8gebYWO1XCKLkMto9JaeJyEpehZQngMJvJc4r+4tWNFv8rcOHu5
-/7SnteVUJK4RBXpKosLqswqD0ySEXzNLloumvxXz8HnXIiTSQ3rtISQSHzp0uunq
-fkTzezc9ZRT08Jx6rmLvpKsJ3QKBgQDtklbus1fRQ/zbdddKbTfYMZsWSi7qQiA3
-AKM7rY6wrS1gUJtVk9mhNgUe0uIvkkdQvtm/QKiSrtgGkre59g9sekZppCyWId6a
-i1tlFvkG16Oc/TsAJDBNJgtWrkPDsjjHSx2VExTeRJ30XGd8lx3EEWHEbSboGPbf
-G3gxm9a1nwKBgAdH06uPpj4k3WpubV0BiWvM24WCZPp2get4O1WJ0PI2ZcqPbBlQ
-GtRZ8FwOhXFIEmz8W+r/eNZ153ErOXzj1NhdvWEEIT9dvMlVjypi62P/Cs/31KDn
-C5edktlcVy1CV30CjkVmg6EP00ADBlkIJqZzA7wSt8iNGwcNCuhNON75AoGBAOGA
-GXIj24RwM1Agr8UenHZix6HFsnh7YdazjT11RU7gYoTcnkUBvP5vpzaV10puX7D+
-JvOJrTjmK3k5xJkIPaWq/rEBu6yZ45DwHEV9I81h3BSErX852nswVGznprzXq1tI
-KoE5BoLfwMqU90nkqsVT9mgbb2W5ZINrsI/uK0RjAoGBAL+9L8iJx6/M4yQosTrQ
-IL6SOxPU3HlfkqZzObiQ8vs7VdIpGhB1EMc9UEKe8RcnpTUeLsVeNHdiDZzRHtJ3
-RxZS/AsjJtYAZ2f/maJhgQsh6JN1AceDhMhx1iTsjr/ockyUZuXKiCr5Q43tzrMJ
-tMrOrkquEUSn+XDIomat7Bnw
------END PRIVATE KEY-----`,
-		NotifyUrl: "https://api.tiefen.fun/vas/wxpay_callback",
+	cfg := new(conf.ConfigSt)
+	err := configcenter.LoadConfig("/Users/erwin/wishpalv2/service/etc/mix/mix-test.yaml", cfg)
+	if err != nil {
+		fmt.Printf("%v\n", err)
 	}
-	err := Init(cfg)
+
+	err = Init(cfg.Wxpay)
 	if err != nil {
 		fmt.Println(err)
 		os.Exit(1)