underground space is a valuable natural resource.As a part of urban organism,it plays an important role in urban construction in the future.The development of urban underground space resources in southern Jiangsu metropolitan area is in a leading position in the country.A relatively perfect system has been formed in underground space planning and management,and urban geological survey has taken the lead in realizing full coverage in the country.According to the geological structure and socio-economic“soft and hard”conditions,the urban underground space resources in southern Jiangsu metropolitan area classified into three types: Ningzhen hilly land type,Suxi Changping prototype and alluvial flat prototype in the middle and lower reaches of the Yangtze River.The geological background and urban demand of underground space development in different types of cities are different.Different underground space investigation,planning,construction and management systems need to be customized according to the actual situation.As an extension of urban geological survey,the geological survey of urban underground space resources needs to put forward higher requirements.This paper puts forward corresponding countermeasures from the aspects of urban underground space resources geological survey accuracy and depth,multi parameter and multi-scale integrated modeling,underground space resources evaluation,collaborative utilization of multiple underground resources, construction of geological data information database and platform,which can be used to guide the engineering practice of urban underground space resources geological survey in the future,and provide reference significance for the geological survey results to support the whole life cycle development of urban underground space.