At present, three-dimensional land use has become a new model in city spatial expansion. Firstly, combining theory with practice,this paper describes the utilization of the aboveground and underground space in the West Zone of Zhongguancun, which is a classic example of three-dimensional land use in China. Then, it analyses the current situation occurred with the absence of relevant laws in establishing the aboveground and underground land rights in this zone. Starting with the representation, it gives the reasons of matter link by link and explains the crux of the matter is that the defects exiting in the system of establishing the aboveground and underground land rights in China, including rights system, obtainment of right, cadastral management and registration system. Finally, aiming at the defects proposed in this paper, it puts forward the corresponding policy proposals,including to create partitioned right to use construction land for completing the aboveground and underground land rights system, to add ownership allocation in all aspects of space utilization, to formulate cadastration standard in space scope, and to improve the existing registration system and connect the old and new regulations. The aim for figuring out those measures above-mentioned is to complete the system of the aboveground and underground land rights system and improve the level of land intensive utilization.