随着计算机技术和网络技术的飞速发展,电子商务已经进入了基于XML的电子商务新时代。XML在电子商务中的应用推动了电子商务的发展,但它同样存在很多安全问题。文章对基于XML的电子商务的安全问题进行了研究,提出了一种解决方案———XML-PKI技术,将它和XML技术相结合可以保证基于XML的电子商务交易信息的机密性、可靠性、完整性和抗抵赖性,保证了电子商务的安全。 With the rapid development of computer technology and network technology, e-commerce has entered a new era of XML-based e-commerce. The application of XML in e-commerce has promoted the development of e-commerce, but it also has many security problems. In this paper, we study the security of XML-based e-commerce and propose a solution --- XML-PKI technology. Combining it with XML technology can ensure the confidentiality and reliability of XML-based e-commerce transaction information , Integrity and non-repudiation, to ensure the safety of e-commerce.