To provide a metal wood golf club, having a club face having high repulsive force, and adjusted in the compressed air pressure in the interior of a head by a user without giving no feeling of any difference from the conventional metal wood golf clubs.

This metal-made wood golf club is provided with a valve for injecting pressurized air disposed in a part 2 extending from the sole weight position of a hollow structure head part 1 to a back weight position, and after compressed air is injected into the hollow head through the valve, a lid 4 of the valve is fitted so that, during the use of the club, the lid of the valve will not be detached.