Electric automobile charging system and method

The invention relates to an electric automobile charging system, which supports charging with a charging pile and a household 220V alternating-current power supply simultaneously. An entire automobile controller, a battery management control module and an automobile-mounted charger perform information interaction through a CAN (Controller Area Network) bus. The entire automobile controller is used for confirming connection between a charging wire and an external charging device of the automobile-mounted charger, selecting a charging mode for charging the electric automobile with the charging pile or the household 220V alternating-current power supply, and controlling the charging process.