1.登录微信支付商户平台登录地址： pay.weixin.qq.com <img alt="" src="http://www.wegouer.com/uploads/allimg/171208/1-1G20Q4463R28.jpg" /> 2.点击账户中心； <img alt="" src="http://www.wegouer.com/uploads/allimg/171208/1-1G20Q44649591.jpg" /> 3.点击API安全； <img alt="" src="http://www.wegouer.com/uploads/allimg/171208/1-1G20Q44F1152.jpg" /> 4.点击设置秘钥； <img alt="" src="http://www.wegouer.com/uploads/allimg/171208/1-1G20Q44G1R1.jpg" /> 5.安装操作证书； <img alt="" src="http://www.wegouer.com/uploads/allimg/171208/1-1G20Q44H0146.jpg" /> 6.申请安装； <img alt="" src="http://www.wegouer.com/uploads/allimg/171208/1-1G20Q44Hc10.jpg" /> 7.选择家庭电脑，输入验证码后点击确定； <img alt="" src="http://www.wegouer.com/uploads/allimg/171208/1-1G20Q44Ib10.jpg" /> 8.安装成功后点击确定； <img alt="" src="http://www.wegouer.com/uploads/allimg/171208/1-1G20Q44JE95.jpg" /> 9.点击账户中心，在点击API安全，在点击设置秘钥； <img alt="" src="http://www.wegouer.com/uploads/allimg/171208/1-1G20Q44K5631.jpg" /> 10.秘钥设置完成后保存到桌面txt文档； <img alt="" src="http://www.wegouer.com/uploads/allimg/171208/1-1G20Q51005595.png" /> 11.在点击API安全，进行下载API证书； <img alt="" src="http://www.wegouer.com/uploads/allimg/171208/1-1G20Q51342461.png" /> <img alt="" src="http://www.wegouer.com/uploads/allimg/171208/1-1G20Q5150B05.png" /> <img alt="" src="http://www.wegouer.com/uploads/allimg/171208/1-1G20Q52332204.png" /> 12.下载后的API证书先自行解压，解压后选择使用记事本打开； <img alt="" src="http://www.wegouer.com/uploads/allimg/171208/1-1G20Q53S5U2.png" /> 13.最后把自己的商户账号、刚才设置的秘钥与下载的证书全部复制到下面； <img alt="" src="http://www.wegouer.com/uploads/allimg/171208/1-1G20Q45915L5.png" />