Abstract: This paper introduces some problems occurred during the metal mine production process，including 3D simulation of complex mine ventilation system and simulation of high-temperature environment caused by deep mining.Ventsim 3D ventilation simulation system can realize various functions，such as ventilation network resolving，ventilation simulation，thermal simulation and economic simulation.It could meet the requirement of 3D ventilation system management in metal mines.The practice showed that Ventsim 3D ventilation simulation system could meet the requirement of mine e-managing，and eventually achieve a safe，efficient and economic operation.

Key words: 3D ventilation simulation, ventilation simulation, heating simulation, pollutants simulation, economic simulation