计算机技术在20世纪90年代开始了飞速的发展,人们在不断推动局域网建设发展的同时,还逐渐重视网络的安全问题。从某些方面来看,日益发展的计算机局域网网络安全问题已经成为了当代社会进行网络安全维护的焦点问题,对人们的工作、生活等都产生了一定的影响。本文对当前计算机局域网络安全的现状进行探讨分析,指出其中存在的问题,并针对问题提出解决的方式,以优化局域网环境,提升网络安全水平。 Computer technology started its rapid development in the 1990s. As people continue to promote the development and construction of the LAN, people pay more attention to the network security. In some aspects, the growing problem of LAN security in computer networks has become the focus of network security maintenance in contemporary society, and has exerted some influence on people’s work and life. In this paper, the current situation of computer local area network security is explored and analyzed, the existing problems are pointed out, and the solutions to the problems are proposed to optimize the LAN environment and enhance the network security level.