Abstract: It is a critical issue to adjust and control the subsurface mine climate based on the heat sources in airway and the temperature changes， heat gain and loss of key locations. By improving the traditional Fourier heat transfer model， a three-dimensional heat transfer model based on the actual cross-sectional shape of the ventilation airway was formulated. The momentum related boundary conditions which can reflex the velocity and quantity changes for different airway profiles also was specified， which associated with the time parameter to reveal the formation of heat conduction and exchange inside the strata and between the rock and airflow， and the heat transfer equation between wet wall and airflow was given at the meantime. On this basis， a large domestic ventilation system for deep subsurface metal mine was built， in order to obtain the trend and specialty of temperature， humidity， heat and some other parameters. This study lays the foundation for the deep subsurface mine to carry out climate regulation and control.

Key words: deep subsurface mine, heat environment, strata heat, multi-heat source, dynamic analysis