Abstract: Region-differential policy of construction land management which based on restricted supply and demand of regional construction land is significative. To some extent, such policy is conducive to the realization of the goal of total control of construction land and the fine management of construction land. This paper build the restricted supply model of construction land based on resource and environment capacity and restricted demand model of construction land based on economic development, in order to provide reference for regional differential construction land management and control strategy. The results indicate: (1) The total scale of the restricted supply of construction land in Yangzhou City is 162 686.44 hm, and the development space of construction land will be more extensive in the south and less in the north in the future. (2) The restricted demand for construction land in Yangzhou City is 158 164.63 hm, which also shows the characteristics of more in the south and less in the north. (3) The restricted demand of construction land in Yangzhou City will not exceed the restricted supply restricted of resources and environmental capacity. The restricted demand scale of Yizheng City and Gaoyou City exceeds the restricted supply scale, while the Urban District, Jiangdu District and Baoying County are opposite. (4)Yizheng City and Gaoyou City should control the total amount of construction land strictly according to the scale of the restricted supply, improve the utilization efficiency of construction land, and reduce the excessive dependence of the economic development on the land elements. The Urban District and Jiangdu District can build a coordinated development strategy of the region, expand the scale of construction land, and optimize the spatial distribution of regional construction land appropriately. Baoying County should pay attention to the protection of cultivated land, and be given moderate construction land index, so as to promote the coordinated development of economic growth and cultivated land protection.
Key words：construction land; supply and demand; regional diversity; Yangzhou City