To solve a problem wherein a club becomes cold when playing golf on the condition of cold air temperature such as in winter, so that body heat is taken from the finger tips of a player in the case of gripping the cold club for swinging and fine senses at the finger tips cannot be used, which causes missed shot, and degrading of concentration resulting in bad influence on getting good score.

This golf bag is provided with a fuel cell which is a weight-reduced power source. Housed golf clubs are heated when necessary to always optimize grip temperature during playing. Thus, comfortable playing environment can be provided to the player.