Over the past few years an increasing number of studies have been made on ‘community money’. However, little attention has been given to the role of the ideal of community money in practice. The ideal or image of community money is not only indispensable for beginning of practice of community money, but also determines the form or system of community money. On the other hand, practiceof community money changes the ideal of community money that the practicers have. Our concern is to consider the interaction between ideal and practice of community money for grasping the dynamic growth of community money in practice. We examine the case in “Dowa” community, where there coexist some ideals of community money in one practice. First, one ideal “Community money should make an inner-community circuit” was brought from the outside of community. Second, in response to beginning of community money, people in community have various images depending on where each stands. Finally, their images began to settle to another ideal “Community money is the one of opportunities for socialization with inners and outers in the community”.