Abstract: As a common phenomenon in deep mining, the high temperature problem has seriously threatened the safety of coal mine. Through the analysis of the high temperature source in mine, it mainly includes thermal dissipation of surrounding rock, air self-compression heat, and heat transfer of mechanical equipment and so on; it describes heat harm on human body, mechanical equipment, surrounding rock in detail. On the basis of reviewing the development status of mine falling temperature technology at home and abroad, it systematically analyzes several targeted prevention and control measures, namely taking conventional non-air condition cooling and artificial cooling methods to construct appropriate operating environment to ensure production in mines safely and efficiently.