在信息时代计算机网络技术早已在人们的生活与工作中得到了普遍应用,但是在计算机网络的使用过程中,或多或少的都会存在一定的安全隐患。计算机网络的安全维护问题一直是人们较为重视的问题。在进行计算机网络安全维护过程中,最为主要的方式就是通过防火墙技术,提高计算机网络的安全性。因此本文对于在计算机网络安全维护中的防火墙技术进行了分析与探讨。 In the information era, computer network technology has been widely used in people’s life and work, but there are some potential safety hazards in the use of computer network more or less. Computer network security maintenance has always been a problem that people pay more attention to. In the process of computer network security maintenance, the most important way is through the firewall technology to improve the security of computer networks. Therefore, this paper analyzes and discusses the firewall technology in the computer network security maintenance.