计算机网络技术的发展促使电子商务应用得到迅速发展,而电子商务在为用户提供更广阔的交易平台。同时,其网络安全问题日益凸显,因此保障电子商务网络安全运行十分重要。本文针对B/S架构的电子商务网络安全问题进行了研究,具体从数据信息、网络边界、用户计算机、电子商务网站及服务器四个方面分析了电子商务应用中存在的安全隐患,并从数据信息安全防护技术、网络边界访问控制技术及入侵防御技术、网站及服务器安全防护技术、计算机病毒防范技术四个方面提出了电子商务网络安全技术防护措施。最后,提出了从技术、管理制度、人员素质等多个方面考虑,构建电子商务网络安全体系的必要性。 The development of computer network technology to promote the rapid development of e-commerce applications, and e-commerce to provide users with a broader trading platform. At the same time, the problem of network security has become increasingly prominent, so it is very important to ensure the safe operation of e-commerce network. In this paper, we study the e-commerce network security problem based on B / S architecture, and analyze the potential security risks in e-commerce application from four aspects: data information, network boundary, user computer, e- commerce website and server. Security protection technology, network border access control technology and intrusion prevention technology, web site and server security technology, computer virus prevention technology from four aspects of e-commerce network security technology protection measures. Finally, it puts forward the necessity of constructing e-commerce network security system from many aspects such as technology, management system, personnel quality and so on.