A V-pulley manufacturing process, including the following steps: forming a pulley: integrally forming a cylindrical pulley blank; machining V-belt grooves: cutting the external surface of the pulley blank to form a plurality of V-belt grooves matching a V belt; fine machining: cutting the external surface of the pulley blank and the side surfaces of the belt grooves, and cutting off a machining allowance; and shot blasting: placing the pulley in a shot blasting machine to form a rough shot blasting layer on the side surfaces of the V-belt grooves. The pulley manufactured through the above process has a high friction coefficient of the side surfaces of the belt grooves, and therefore has advantages of preventing slippage and having high transmission efficiency.