Abstract: Basic connotations of wisdom mine were summarized, which were having active perception ability, automatic analysis ability and quick processing ability, digital mine was the foundation and support of wisdom mine, while unmanned mine was the advanced stage and ultimate goal of wisdom mine. Three core problems to be solved in wisdom mine were pointed out, which were deep perception of mine state, deep mining of mine data and decision support for mine safety production and management. Three key technologies that wisdom mine relied on were analyzed, namely coal mine Internet of things technology, coal mine big data technology and coal mine intelligent decision support technology.