介绍了电动汽车关键技术发展状况，分别从电动汽车用驱动电机、动力电池及电池管理系统、电机控制及能量回收系统等方面进行了概述，并对电动汽车技术发展趋势进行了展望。在政府的支持下，随着电机、电池及电控等电动汽车关键技术逐步完善，电动汽车必将成为“零污染”的清洁交通工具。

This article introduces the key techniques of electric vehicle from the aspects of driving motor, battery, battery management system, motor control and energy recovery system. The development of the key techniques in electric vehicle is presented. With the support of our government, electric vehicle will be used widely in the future along with the development of the key techniques on motor, battery and control system.