A pure electric automatic driving system provided by the present invention comprises an environmental information acquisition system, a perception fusion unit, an intelligent decision unit, a vehiclemotion coordination controller and a vehicle execution system which are connected orderly, wherein the intelligent decision unit outputs the local paths that a vehicle can drive and the correspondingdriving behavior instructions to the vehicle motion coordination controller, and the vehicle motion coordination controller realizes the transverse motion control and the longitudinal motion control of the vehicle, so that the automatic driving system is modular in function division and normalized in information interfaces, the application scenes of the automatic driving functions are helpful to be expanded, and the riding safety experiences of the automatic driving vehicles, for example, the safe and comfortable automatic driving at a faster vehicle speed and on a faulted working condition, are improved. In addition, the vehicle motion coordination controller monitors the real-time state of the whole automatic driving system, so that the fault states can be identified timely, the reasonable countermeasures can be made, and the driving safety of the automatic driving under various states is guaranteed.