Abstract: Mine heat sources analysis and cooling techniques are important for deep mining.Heat hazards in mines were analyzed from five aspects of heat releases from mine tunnel rocks，ore oxidation，the electrical and mechanical equipment，underground heat water and local heat sources.And the air-cooling techniques were classified into traditional cooling technology and modern cooling technology，and their principle，characteristics and application status were discussed respectively.There exists ice transportation and melting issues in cooling technique of ice manufacturing.But，the technique of cooling water is so mature that it has become the main cooling mean.The cooling techniques of gas power generation could eliminate the gas emission and heat hazard in the mine，and realize the utilization of resources in a more intelligent way.The cooling techniques of separate type heat pipe which is suitable for the large-scale heat-exchange equipments completely separated cooled water from warmed fluid without external power.Besides，the development and trend on the current cooling techniques in underground mines were proposed.

Key words: Mine heat hazard, High temperature heat source, Cooling technique, Gas power generation, Separate type heat pipe, Development trend