This paper reviews the history and events related to urban underground space(UUS) exploitation in the world, focusing on the status and achievements of UUS exploitation and utilization in China. Further, it proposes development strategies for issues with regard to UUS that need to be resolved urgently, including(1) planning UUS in coordination with urban planning and realizing synergetic planning between surface space and UUS;(2) refining policies and laws based on China's national conditions and completing...