Long- term large- scale exploitation of coal resources in China has produced a large number of underground spaces. Directly shutting it down will not only waste underground space resources, but also cause a series of safety, environmental and economic problems. Therefore, how to scientifically and efficiently solve the comprehensive development and utilization problem of underground space in coal mines is of great practical significance for the development of the coal industry and even the national economy. This article takes the main coal producing provinces as representatives and combines the latest data collected from research on production and closure of coal mines to deeply analyze the overall situation of underground space in production and closure of coal mines during the 13th Five Year Plan period. It systematically summarizes the current functional utilization status of underground space in coal mines at home and abroad in terms of storage and energy storage, and points out the scattered resource data information in the current utilization of underground space in coal mines in China, the overall development and utilization rate is low, related technology research work is still relatively lagging behind, and there are few mature demonstration projects available for promotion and reference. Four key development directions have been proposed in the new era, including the construction of coal mine underground space basic database, utilization system construction, key technology research, and demonstration project promotion.