在电子商务如此盛行的今天,如何保障电子商务活动的安全,一直是电子商务的核心研究领域也可以是电子商务的生存保障。只有保证了电子商务的安全,才能促进电子商务的良性发展。在目前的技术手段下,解决电子商务安全问题最成熟的方案是建立在公开密钥技术基础之上的PKI体系。本文将从PKI的概念和结构体系入手,详细介绍PKI技术在电子商务安全领域中的应用。 In today’s e-commerce so popular, how to protect the security of e-commerce activities has been the core area of ​​e-commerce research can also be the survival and protection of e-commerce. Only to ensure the safety of e-commerce, in order to promote the healthy development of e-commerce. Under the current technical means, the most mature solution to the problem of e-commerce security is to establish a PKI system based on public key technology. This article will start with the concept and structure of PKI system, detailing the application of PKI technology in the field of e-commerce security.