By analyzing the essence of land expropriation,the request of the expressway's character for government and the relations between stakeholders in expressway land expropriation,this article insists that the government should play the role of decision makers,executives,supervisors and servers.The government is expected to position its role accurately and take up the corresponding responsibility.Then in order to solve the problems such as the difficulty of current expressway land expropriation,high cost of uni...