随着Internet应用的发展,现代信息管理已经从自动化逐步过渡到数字化,在网络方面的应用更加深入,系统的安全问题日益引起人们的高度重视。操作系统是连接计算机硬件与上层软件及用户的桥梁,它的安全性是至关重要的。文章在管理实践的基础上,从系统安全的最底层出发,研究总结了构建安全系统需要考虑的几个主要方面。 With the development of Internet applications, modern information management has gradually transitioned from automation to digitalization, and its application in the network has been further deepened. The issue of system security has drawn increasing attention. Operating system is the bridge between the computer hardware and the upper software and users, its security is crucial. Based on the management practices and from the lowest level of system security, the article studies and summarizes several important aspects to be considered in constructing a security system.