This article analyses some important aspects of present condition of land use in Hainan Island, including land use composition, land productivity,spatial distribution of land use, land use technology, land use rate, and land use planning and management. Then, the guiding principles of future land use are described as following: (1) The land use composition should be adjusted appropriately according to the regional development strategy;(2) Land use should more coordinated with market in economic operation; (3) Tropical crop should take an important place in land use; (4) The land should be developed and used in sustainable way; (5) The macro control of goverment should be strengthened; (6) The area of cropland should be stabilized. Finally, some measures to realize rational and effictive land use are suggested.