The invention discloses a vehicle safety protection method and device. The vehicle safety protection method comprises the steps that threshold values are set; the travelling speed of a vehicle, the relative speed and the vehicle distance between the vehicle and a front vehicle, and surrounding obstacles are detected and compared with the set threshold values; whether detected data are larger thanthe set threshold values or not is analyzed; if the detected data are larger than the set threshold values, alarm is issued; and when a driver does not take deceleration or acceleration braking measures within 0.8 second, a system conducts emergency braking and increases the distance between the vehicle and the front vehicle or a rear vehicle in a forced mode. The steps are matched with an information acquisition module, an information processing and control unit, an execution module, a storage module and a power supply unit in the device to be implemented, the travelling speed of the vehicleis controlled within the safe travelling speed range, meanwhile, the vehicle is all-dimensionally monitored in real time, the timely alarm function is provided, the rear-end accident rate is effectively decreased, and when the two vehicle collide, the vehicle active safety protection device is automatically started, so that the travelling safety is improved all-dimensionally.