Abstract: Based on the research on the heat exchange regularity between air and rock in air-inlet temperature-regulating system, a new method for improving mine ventilation is presented. The results of theresearch show that for mines located in northern china, the method can prevent from ice accretion in air-inlet shaft and decrease air-inlet temperature, thereby create a favorable condition to improve mine ventilation. It has a wide application perspective for Iittle investment. low energy consumption and fine effectiveness.