随着信息化建设的快速发展,信息网络已经成为社会发展的重要保证。但是,由于在早期网络协议设计上对安全问题的忽视,与它有关的安全事故屡有发生。使各国的计算机系统特别是网络系统面临着很大的威胁,并成为严重的社会问题之一。而有针对性地加强网络信息安全防护,是网络安全必须做的工作。针对这些问题,该文归纳并提出了一些网络信息安全防护的方法和策略。 With the rapid development of information technology, information networks have become an important guarantee for social development. However, due to the neglect of security issues in the design of early network protocols, security incidents related to it frequently occur. Make the computer systems of all countries, especially the network system facing a great threat, and become one of the serious social problems. And targeted to strengthen network information security protection, network security must do the work. In response to these problems, this paper summarizes and puts forward some methods and strategies of network information security protection.