A turnover type pedal boarding device comprises a fastener mechanism, a pedal plate mechanism, a first airplane body frame, a skin and a second airplane body frame, wherein the first airplane body frame and the second airplane body frame are positioned and fixed to an airplane body through an airplane assembling and mounting fixture; the skin is riveted on the first airplane body frame and the second airplane body frame; the fastener mechanism is riveted on the skin; the pedal plate mechanism is arranged at the part, positioned under the fastener mechanism, of the airplane body; a fastener spring is arranged on the fastener mechanism; a pedal plate spring is arranged on the pedal plate mechanism; by using an elastic force of the spring, turnover and folding are realized; the turnover typepedal boarding device is opened at any time, is easy to retract and expand, does not occupy the space, provides a stable and reliable supporting structure without affecting appearance requirements ofan airplane on overall aerodynamic characteristics, is convenient for ground crew to maintain the airplane and is convenient for pilots to get on and off the airplane; and the applicability is high.