The invention discloses a self-helped stair climbing vehicle which consists of a 'self-helped stair climbing' structure, a frame, a shaft, wheels and the like, wherein the 'self-helped stair climbing' structure consists of 'a driving part and an executing part'. The self-helped stair climbing vehicle is characterized in that the executing part consists of two trident-shaped frames by an angle of 120 degrees with each other; a free wheel is arranged at each free trident end; the centers of the trident-shaped frames are fixed at two ends of the shaft; the shaft is integrated with a pinion; when a rack is pulled upwards or a hand wheel is rotated clockwise, the pinion rotates clockwise, and the self-helped vehicle can climb up stairs; when the rack is pushed downwards or the hand wheel is rotated counterclockwise, the pinion rotates counterclockwise, and then the self-helped vehicle can go downstairs. Only elevators and electronic stair climbing vehicles as stair climbing tools are available at present, the self-helped stair climbing vehicle breaks the frame of a conventional stair climbing vehicle and adopts a non-mechanical structure, help by others is not needed, the self-helped stair climbing vehicle is simple and easy to operate, can be accepted by wide people and is operated in a surprising self-helped manner, and the difficulty that a user needs to go upstairs and downstairs by self can be solved.