Abstract:  Analyzed from the perspective of the new institutionalism in sociology, corporations can only survive and develop by improving efficiency in the market and obtaining legality from the shareholders in the non-market environment. In the field of firms, institutional pressures lead organizational isomorphism. Therefore, to build a good institutional environment is important mechanism to promote corporate social responsibility. As a profession and service of helping people help themselves, corporate Social work has a lot in common with corporate social responsibility in terms of work ideas and service contents. This paper builds a model of analyzing how to promote the behavior of corporate social responsibility by corporate social work. The model holds that corporate social work, if carried out in the community level, will shape the corporate institutional environment, which promotes corporations to fulfill their social responsibilities.

Key words:  corporate social work, corporate social responsibility, institutional pressures, organization isomorphism