Rear seat safety air bag device and vehicle

The invention discloses a rear-row seat safety air bag device and a vehicle, and the rear-row seat safety air bag device comprises a guide rail which is arranged in a backrest of a front-row seat and extends in the height direction of the front-row seat; the safety air bag assembly is movably arranged on the guide rail, the safety air bag assembly comprises an air bag support and a safety air bag arranged on the air bag support, and the safety air bag is expanded and unfolded in the direction of the rear-row seat when the vehicle is collided; and the driving assembly is arranged in the backrest of the front-row seat and used for driving the safety air bag to move relative to the guide rail. According to the rear-row seat safety air bag device, the guide rail is arranged so that the safety air bag can move up and down in the height direction of the front-row seat, and therefore the position of the safety air bag can be adjusted according to the body parameters of a passenger on the rear-row seat, and the safet