随着网络技术的不断发展,Internet正在人们的生活中占据越来截止重要的地位。近几年来,研究人员在认证和授权,网络访问控制,防火墙,以及计算机系统安全管理、网络信息安全管理等方面做了许多研究工作,并取得了很多研究成果。网络监控是许多网络用户急需解决的问题。本文从Internet的安全问题的提出着手,分析了常见网络信息安全问题,得出了网络安全监控系统的设计的思路。 With the continuous development of network technology, the Internet is occupying an increasingly important position in people’s lives. In recent years, researchers have done a lot of research in authentication and authorization, network access control, firewall, and computer system security management, network information security management and achieved a lot of research results. Network monitoring is a problem many network users urgently need to solve. This paper starts with the proposal of the Internet security problem, analyzes the common network information security problem and gets the idea of ​​the network security monitoring system design.