网络流量异常检测及分析是网络异常监视及响应应用的基础,是网络及安全管理领域的重要内容。本文从网络流量的数据类型、网络流量的异常种类进行了描述,从流量异常检测的范围、流量异常分析的深度、在线和离线异常检测方式等方面归纳流量异常检测的研究内容,并结合现阶段网络流量异常检测中存在的问题,提出针对性地解决措施。 Detection and analysis of network traffic anomalies are the basis for monitoring and responding to network anomalies and are an important part of network and security management. This paper describes the types of network traffic and the types of network traffic anomaly. It summarizes the research content of traffic anomaly detection from the aspects of the range of traffic anomaly detection, the depth of traffic anomaly analysis, the online and offline anomaly detection methods. Combined with the present stage Network traffic anomaly detection problems, put forward specific solutions.