Abstract: The development and utilization of urban underground space is an inevitable choice when an economic society develops to a certain stage. This study analyzed the current situation and future change trend of theories and technologies of urban underground space development and untilization. With emphasis on key scientific problems and technolgical difficuties occuring in urban space detetion and safa utilization, a stratigic thinking was proposed, consisting of “total factor” fine exploration, “total resource” overall evaluation, “total space” collaborative planning and “total environment” monitoring and warning. Three theoretical systems, which are the balance and disturbance re-balance of urban underground system, resources evaluation system of underground total space, and underground space division and planning system were also established. The three systems, along with other four technological systems, such as urban underground space fine detetion-resource evelation, urban underground space divsion and planning, underground space exploration and construction, underground space monitoring and warning system, will provide theoritical and technolgical support for promoting the establishment of urban 3D development model in China.