Abstract: The existing modeling algorithms of three-dimensional roadway model are complex, and the trend of roadway is directly determined by the coordinate of the endpoints of roadway, which cannot reflect fluctuation of roadway well. In view of the above problems, taking engineering plan of coal mine as basic data, a three-dimensional coal mine roadway model was constructed by using topological relationship between the roadways to collect location points and using algorithm of loading section of center line. Based on the three-dimensional roadway model, a three-dimensional model of mine ventilation system and corresponding database were generated through synchronizing ventilation facility model into the three-dimensional system. The generated three-dimensional map can clearly show overall shape of the mine roadway. Combined with database information management, the intelligent operation such as adding and modification of the mine model can be achieved. The practical application results show that the model can realize fast conversion from two-dimensional drawing to three-dimensional drawing of the mine ventilation system, display information of mine roadway and condition of working face truly, and the database of the mine map can be updated in real time, which provides a good platform for research of mine ventilation network solution and disaster simulation.