To improve transportation and storage capacity for wheels by increasing the contact area of a protective plate to a pallet and eliminating mutual slippage in the vertical and lateral directions.

This wheel stacking apparatus is formed by a pallet 1 for carrying a plurality of wheels stacked thereon in parallel in one or more stages, and a protective plate 5 laid on the top face of the pallet and put on the stacked wheels. One or more pairs of long grooves 2a 2b, 3a, 3b mutually pointing in different directions are formed on the flat top face of the pallet. The protective plate is provided with positioning projecting parts 6a, 6b, 7a, 7b projected toward one surface side, which are engaged with the long grooves formed in the pallet in the different directions when the protective plate is laid on the top face of the pallet. Thus, the contact are of the protective plate to the top face of the pallet is enlarged and positional shift in the vertical direction and positional shift in the lateral direction can be sufficiently inhibited.