Abstract: Yichang is in a critical period of building a modern mega-city, and it is also a period when resource and environmental constraints are tightening and the contradiction between ecological environment protection and economic development is intensifying. The development and utilization of underground space can expand the urban resource environmental bear capacity without increasing the land use and destroying the surface landscape pattern, which is of great significance to the urban construction of ecological civilization demonstration area. Based on the comprehensive geological survey project carried out in Yichang, under the dual constraints of geological environment and urban development characteristics, the environmental factors influencing the development of underground space resources in the study area are analyzed. Then, the explosibility, suitability and potential value of the underground space resources are evaluated, hoping to provide decision support for the related development planning.