Wake-up control system, vehicle control unit and vehicle

The utility model discloses a wake-up control system, a vehicle control unit and a vehicle. The wake-up control system comprises a controller; the wake-up sampling circuit is used for collecting a wake-up signal; the sampling holding circuit is connected with the wake-up sampling circuit and is used for outputting a first control signal according to the wake-up signal and enabling the first control signal to be maintained for a preset time; and the power supply management unit is connected with the controller and the sampling and holding circuit, and is used for supplying power to the controller according to the first control signal from the sampling and holding circuit, so that the controller is powered on. According to the wake-up control system, the vehicle control unit and the vehicle, wake-up requirements can be met according to different types of wake-up signals.