目前，视频监控下行为识别技术已经广泛应用于日常生活。它从视频、监控中检测、提取、识别人的行为动作，并进行判断。在证据提取，行为监督等等方面起到了很好的替代人类观察记录的效果。本文结合了目前已经提出的视频监控中的行为识别技术，同时对一些相关文献根据所采用的方法进行了分类。旨在较全面的总结近年来视频监控中的行为识别技术发展，突破及不足。并通过对各种方法进行分析比较，以探究未来视频监控中的行为识别技术发展方向。

At present, the activity recognition technology in video surveillance has been widely used in daily life. It detects and identifies the activity of people from the video and monitoring, and then judge. It is a good substitute for human observation records in evidence extraction, behavior supervision and so on. In this paper, the activity recognition technology in video surveillance has been discussed, and some related documents are classified according to the methods used. The purpose of this paper is to summarize the development of the activity recognition technology in video surveillance recently. Through the analysis and comparison of various methods, we want to explore the future direction of the development of activity recognition technology in video surveillance.