A shoe sole air cushion includes a hollow main body defining an air chamber. The main body includes bottom and top walls, and a peripheral wall connected between the bottom and top walls. The bottom wall includes a plurality of lower pins projecting upwardly from an inner surface of the bottom wall. The top wall includes a plurality of upper pins projecting downwardly from an inner surface of the top wall. The upper and lower pins respectively have tapered ends. The tapered ends of the upper pins are connected respectively to the tapered ends of the lower pins.