A mounting device includes a slope including: a main plate for mounting awheelchair； avehicle-side plate provided between a vehicle and an edge of the main plateand comprising atleast one plate； and a ground to be contacted-side plate provided between asurface of ground tobe contacted and the other edge of the main plate and comprising at least oneplate. The mainplate can be raised and lowered between a low position and a high positionwhen the ground tobe contacted-side plate is in contact with the ground. The mounting device isalso providedwith: an electric winch that can tow the wheelchair along the slope； a slopedriving mechanismthat drives the main plate； and a control unit that, on the basis of the drivestate of one of theslope driving mechanism and the electric winch, controls the drive state ofthe other.
