The invention provides a vehicle-controller control method, a vehicle controller and a vehicle. The vehicle-controller control method includes the steps that the powering-on time number of the vehicle controller is obtained; when the powering-on time number of the vehicle controller is over than a preset powering-on-time-number threshold value, a control order is generated; according to the control order, the application function of the vehicle controller is controlled to be in the forbidden energy state. By means of the vehicle-controller control method, the vehicle controller and the vehicle, the problem that after the vehicle controller is unloaded, the technology is easy to leak is solved.