Abstract:The fifth amendment to the constitution of the United States stipulated that the imposition of real property changed the purpose of the former feudal real estate expropriation as the service of the ruling class and turned to the public interest. However, with the change of government role and social economic development and prosperity, the initial system design is difficult to deal with all kinds of problems encountered in the formulation and implementation of public policies. In this paper, the formation and evolution of the imposition of real property in the United States have been studied by analyzing the background of the formation of the right of immovable property in the United States and typical cases. It is showed that with the diversified development of social economy and the expansion of the connotation of public use, the US government supplements and improves the generalization and deficiency of relevant provisions of the law in the initial definition of real estate acquisition by case studies. When the government is exercise of the right to immovable property, the operation of land will be used together in order to increase the income of local residents, increase employment opportunities, and improve local municipal environment. How to coordinate the government behavior and the public interest is to establish a reasonable public participation system to reflect the demands of the public supervision and government behavior in order to achieve the protection of the rights and interests of the individual. The evolution and development of the immovable property expropriation system in the United States provides a certain theoretical reference and case support for the reform of the land expropriation system in China.
