随着互联网网络技术的高速发展,人们的生活越来越离不开互联网,但与此同时,互联网安全事件也随之增加,且互联网安全问题已成为人们以及各互联网技术研究者广泛关注的问题。本文主要从现阶段互联网网络存在的安全漏洞问题进行分析,并针对存在的问题提出一个以安全策略为指导、安全技术为支撑以及安全管理为实施手段的互联网安全防御体系。 With the rapid development of Internet network technology, people’s lives are becoming more and more inseparable from the Internet. At the same time, however, the number of Internet security incidents also increases. Internet security has become a topic of widespread concern to people and Internet technology researchers . This article mainly analyzes the existing security vulnerabilities in the Internet network and proposes a security defense system based on the security policy, security technology and security management.