随着科学技术的不断发展,计算机网络已经成信息传播的主要方式,计算机网络在提供方便快捷的信息交流方式同时,其自身的开放性、互联性也带了安全隐患,计算机网络安全问题也成为人们关注的焦点。文章结合计算机网络安全的定义,分析计算机网络安全存在的问题,探讨预防计算机网络安全问题的策略。 With the continuous development of science and technology, computer network has become the main way of information dissemination. While computer network provides convenient and expeditious way of information exchange, its own openness and interconnection bring security risks and the problem of computer network security also becomes People focus. In this paper, the definition of computer network security, analysis of computer network security problems, to explore strategies to prevent computer network security issues.