The present disclosure provides a safe driving method, a safe driving device and a safe driving system, for a vehicle. The safe driving device includes an information processor, and a brake controller connected to the information processor. The information processor is configured to acquire vehicle information and information about a driving license of a driver, and determine, in accordance with the vehicle information and the information about the driving license of the driver, whether or not the driver meets a requirement for driving the vehicle. The information processor is further configured to, in the case that the driver does not meet the requirement for driving the vehicle, control the brake controller to brake the vehicle.