计算机信息化建设的飞速发展,网络的不断发展和普及,带来了无穷的信息资源.计算机已普遍应用到日常工作、生活的每一个领域,政府机关、企业、学校、医院、社区及家庭等等.随之而来的是,计算机网络安全也受到前所未有的威胁,计算机病毒无处不在,黑客的猖獗防不胜防.本文重点介绍了局域网安全控制与病毒防治提出相应的安全防范措施. The rapid development of computer information construction, the continuous development and popularization of the network, has brought endless information resources. Computer has been widely applied to daily work, every area of ​​life, government agencies, enterprises, schools, hospitals, communities and families Etc. Followed by that, computer network security has also been an unprecedented threat, computer viruses are everywhere, hackers rampant prevention.This article focuses on the LAN security control and virus prevention and control put forward the corresponding security precautions.