With the accelerated development of urbanization, urban land is increasingly tense, and the development and utilization of underground space can effectively alleviate this problem.Therefore, more and more attention has been paid to the development and utilization of underground space in recent years.It is of great practical significance to study the hot spot and development trend of urban underground space exploitation and utilization.Using CiteSpace software and taking underground space planning as key words,a visual analysis of relevant literatures in CNKI and Web of Science database over the years is conducted.The results show that the research on underground space planning is mainly concentrated after 2000, and shows a trend of fluctuation growth. The research content mainly focuses on spatial planning, rail transit, integrated corridor, territorial space, urban renewal and other directions. With the change of time, its research emphasis also varies.By analyzing and sorting out the above contents, the hot spots and trends of underground space planning research is summarizd to provide reference for the relevant research of underground space planning.