Social organization and enterprise are the important part in modern social management structure. This report discuss how the profit-maximization-seeking firms to undertake social citizenship responsibilities, and points out that as a non-government and non-enterprise public welfare organization, social organization promotes corporate citizenship in various ways. The promotions are different as the different types of social organization. Social groups, especially the economical social groups, are service and monitor body. Foundations are the effective platform, and civil non-enterprise organizations are the builder of environment. <<