随着移动通信的发展，在移动通信中提供除语音通信外的新的服务功能成为增长热点，而定位服务是最重要的热点之一，其原因与E-911条例要求所有移动网络在运行时必须在一定的时限内提供定位服务有关，该文通过对国外大量文献的研究，详细介绍了现有的各种移动通信定位技术，通过对各种定位方法进行深入研究和比较后，指出了它们的实现方法及各自存在的优点和不足。同时介绍了该技术领域的研究现状，并对今后技术的发展方向提出了相应的设想By the mobile communication developing, location technology became new service of hotspot. More and more research organization have paid attention to this technology and it is necessary that mobile proprietor must provide location service before 2001 years. This paper it introduce all kinds of cell location techniques, advantage and disadvantage of every method is also said. In the end it point out the problems that have to be researched in the future and the trend of this technology.