Abstract: Based on the current situation of mine ventilation system, we determine the distribution of high resistance roadway; combined with the ventilation network solution data, we develop a practical method to reduce the resistance. After optimization, the ventilated complexity of the north air shaft and Luozhuang shaft is significantly improved. At present, the mine ventilation system runs in good condition, and achieves good economic benefits, and lays a solid foundation for the development of mine safety and efficiency.