This article considers from 'The New Institutional Economics' viewpoint, inside the government's widespread, established decision-making process and the effect of the influence between the trustees and the agents regarding the examination process. Taking the Ministry of the Interior Regional Planning Committee as the example, this article will organize the relationship between the trustee and the agent by analysis of the literature and in-depth interviews to understand its crucial nature to land development. This article recommends clearly defining power and responsibility, reducing conferences to promote a proxy attribute between the trustee and the agent, and establishing a supervising mechanism. This article also moderates promotion drive causes, provided the information should not induce examination of direction, and should not approve cases on which the trustee and the agent have divergent opinions.