伴随着互联网的不断发展,计算机网络安全问题也日益突出,在这种情况下,数据挖掘技术就显得尤为重要。数据挖掘技术不仅能够有效收集网络信息,还能在此基础上最大程度的保护计算机网络安全。因此,本文主要从数据挖掘的基本原理入手,并对当前我国计算机网络安全面临的问题进行分析,从而进一步明确数据挖掘在我国计算机网络安全领域是如何进行应用的,保护我国计算机网络安全。 With the continuous development of the Internet, computer network security issues are also increasingly prominent, in this case, data mining technology is particularly important. Data mining technology not only can effectively collect network information, but also on the basis of this to maximize the protection of computer network security. Therefore, this dissertation starts with the basic principles of data mining and analyzes the problems that computer networks in our country are currently facing. In this way, we can further clarify how data mining is applied in the field of computer network security in our country and protect our computer network security.