The invention discloses an unloading platform and relates to the field of loading and unloading assist devices. The unloading platform is applied to a loading and unloading vehicle, and comprises a platform body, a supporting part and an air cylinder driving device, wherein the air cylinder driving device is mounted at the bottom of the loading and unloading vehicle; the platform body is rotationally connected to the tail of the loading and unloading vehicle; the supporting part is mounted on the surface, facing down, of the platform body; the platform body comprises a first flat plate and a second flat plate which are rotationally connected; the first flat plate is rotationally connected to the tail of the loading and unloading vehicle; the air cylinder driving device is movably connectedto the first flat plate; and through the air cylinder driving device, the first flat plate and the second flat plate are controlled to perform the opening and closing operation. The unloading platform disclosed by the invention can be automatically opened and closed; an inclination angle between the totally-opened platform body and the ground is within the safety angle range for the climbing of aC6 drilling rig; and accordingly, the C6 drilling rig can be automatically transported without the aid of external force.