Abstract: The virtual reality technology which is applied to mine accident simulation is a new direction in the field of coal mine safety. In the traditional coal mine safety training and accident teaching, coal and gas outburst accidents were presented in the methods of blackboard writing and accident cases analysis, which brought difficulty for trainees to achieve a profound understanding of coal and gas outburst accidents. In this article, virtual simulation system for coal and gas outburst accident is designed and developed on the basis of Virtools and 3D Max technologies. Furthermore, functional implementation methods for outburst accident simulation reproduction system and accident walk-through system are investigated in detail.