An electric vehicle control system and a control method, an electric vehicle power-on method, an electric vehicle power-off method, and an electric vehicle charging method are disclosed in this application. The control system includes a domain control unit controlling an electric vehicle, a current sampling unit sampling the current of a power battery and a motor of the electric vehicle and sending sampling signals to the domain control unit, and electrical device, driven by the power battery, sampling the current flowing through it and sending the sampling signals to the domain control unit. The domain control unit, according to the sampling signals sent by the electrical device and the current sampling unit, manages the power battery and controls a motor driver module and the electrical device. The structure of the control system and the control policy are simplified and the power-on and power-off time is shortened.