计算机在各个领域中的应用越来越广,在人们生活和工作中占有越来越重要的地位。由于计算机网路技术具有多样性、开放性以及广泛性等特点,在使用计算机的过程中,还会给计算机网络技术造成一定的网络安全隐患,同时给用户带来一定的影响。本文就计算机网络安全问题进行研究,探讨计算机网络安全防护的措施,以便提高计算机网络的安全性和可靠性,减少网络安全事故的发生率,从而有效的保护用户信息的安全。 The application of computer in various fields is more and more widely, occupying an increasingly important position in people’s life and work. Due to the diversity, openness and extensiveness of computer network technology, computer network technology will also cause some network security risks in the course of using the computer, meanwhile, it will bring certain impact to the users. This paper studies the problem of computer network security and explores the measures of computer network security protection in order to improve the security and reliability of computer network and reduce the incidence of network security accidents so as to effectively protect the security of user information.