Abstract: Since the implementation of the coal mine production capacity policy, China has withdrawn 4.4 million tons of coal production capacity, a large number of coal mining enterprises are facing the transformation, the " PostCoalMine era " is coming. From the concept of " PostCoalMine era ", the article combs the current situation of the transformation of the current shut - off mine, and points out that the PostCoalMine era will going through three stages. The author proposed the stage of "Active Use of PostCoalMine era " point of view. This article lists the types of space in underground coal mine, summarized the design idea of development of underground space, The article points out the key directions for the planning and design of the related industries, and also provides a reference for the transformation of the mine.