Study on the Development and Utilization of Urban Underground Space

With the increasing need of the land resources and the rapid development of social economy,the development and utilization of underground space have become the tendency for city development.Aiming at finding the better way to explore the underground space,this paper retrospected the history of underground space development and discussed the related contents such as the development model(civil air defence etc.),development focus(civil air defence project etc.),ownership(legislation etc.)and planning improvement(general plan etc.)of underground space.