A golf club head comprises: a hollow main body provided with an upper opening located in a crown portion of the head; and a crown plate fitted in the upper opening and having a specific gravity less than that of the main body, wherein the main body is provided around the upper opening with a crown plate support supporting a peripheral edge part of the inner surface of the crown plate. The crown plate support has a width of not more than 5 mm. The minimum distance between the upper edge of the club face and the crown plate in the back-and-forth direction of the head is not less than 10 mm. The thickness of the crown plate is not more than 0.7 mm.