介绍了计算机入侵检测技术的基本原理和过程，分析了基于数据挖掘、神经网络、支持向量机等最新技术应用于入侵检测的情况，提出了未来工作方向。关键词：入侵检测；网络安全；应用Abstract: The paper presents the basic principle and process of computer intrusion detection technology, and analyses the applications about intrusion detection based statistical model, model, system, neural network and support vector machine technologies etc, and point out further researches about it.Keywords: Intrusion Detection; Network Security; Application