This study aims at suggesting marketing policies for the postal business to accommodate itself to the rapidly changing business environment. Especially according to the development of Internet, the decrease of the market that is the basis of postal business enables the reason for the existence of postal business to be lost. In this environmental change, this article is a study that explained the survival policies of postal business in terms of marketing. This study, as a theoretical research, examined the current situations of postal business by means of the environment analysis of universal services and postal business, and as a practical research, this study suggested the new paradigm of postal business, the strengthened universal services, and the marketing policies in viewpoint of the diversified businesses by means of the practical investigation of the course of postal business focusing on the postal service users.