In promoting real estate informatization policy, this study aims to indicate the concept of real estate informatization policy efficiency and influencing factors to minimize uncertainty and promote the efficiency. Empirical analysis found out four factors influencing successful real estate informatization policy : leadership promoting real estate informatization, user-oriented approach, technical competence and application and policy evaluation. That is, the results showed that leadership for promotion is most important for promotion of successful real estate informatization policy, systematic policy evaluation is most important for efficient policy promotion, and fulfillment of technical competency and application is most important for effective promotion. As a first attempt on the factors influencing the real estate informatization policy, this study tried to contribute to design a theoretical framework. In the future influential factors shall be found out through establishment of the concept about successful real estate informatization policy, social indicators for objective measurement, and detailed analysis through development of detailed measurement factors.