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Land area on the ground have a significant effect on price. A total land area of the impact on the ground have confirmed that, but the unit area on the ground the role of the law of the few empirical support. In this paper, through the GWR model not only quantitative study of the area were priced on the ground the impact of the situation, its impact at the same time come to change the laws of space. The results showed that the area of land on the ground in Beijing residential land price has more impact on the law of the district from the city center to the periphery of the situation increased. the existing built-up area, large area of land involved in the development of the main benefits are more difficult demolition, developers tend to get small-scale; and in the cities, in particular the development of new regional development, land acquisition easier for large scale development.