在互联网不断发展的当前社会,计算机的普及率增加,计算机技术也在持续进步,相关工程也越来越多,应用规模持续扩大,网络营销和攻击的手段也在不断增加,并且形式繁多。在这样的发展情况下,计算机的网络防御系统就需要不断地进行完善,来更好地抵制来自网络的负面冲击和黑客入侵。本文结合当下计算机发展面临的问题,对计算机网络防御策略,及其求精的关键技术,提出了一些分析和意见。 In the current Internet society, the popularization rate of computers has increased. Computer technology has been continuously improved. More and more related projects have been implemented. The scale of application has been continuously expanded. The means of network marketing and attacks have also been increasing and there are many forms. In this development, the computer network defense system needs to be constantly improved to better resist the negative impact from the network and hacking. In this paper, the current computer problems faced by the development of computer network defense strategy, and refinement of the key technologies, put forward some analysis and opinions.