The rescue effort of rescue crew in coal mines is mostly responsible for preventing an accident from becoming worse. An emergency virtual drill training system based on Unity 3D technology is introduced in order to enhance the tactical capacity of rescue team, make members understand the rescue theories and standardize their behaviors. The system can simulate and present the whole process of underground rescue, train rescue team virtually and strengthen investigation ability of rescue players through a man/machine interaction and computer-scored system. Currently, the system has been successfully applied to China Kailuan Group’s emergency rescue base. The results show that the system not only enhances the rescue capacity of players, but also guarantees the safety of training process.