Abstract: In order to discuss the orientation of research on coal and gas outburst mechanism,research findings of coal and gas outburst mechanism were presented in this paper,Different thoughts and methods of research on coal and gas outburst mechanism were expounded,so were the processes of development and current situation of research on coal and gas outburst mechanism.Limitations of existing research findings on coal and gas outburst mechanism were analyzed.Orientation of research on coal and gas outburst mechanism was proposed as well.Currently,research on coal and gas outburst mechanism has developed from single-factor level to multiple-factor level and hypothesis of comprehensive function of multiple-factor has received wide acceptance,which has built theoretical basis for outburst prevention measures in coal mine.Domestic researchers have made abundant achievements in the research on mechanism of coal and gas outburst,which has advanced and developed the mechanism.It was believed that the mechanisms of outburst preparation,outburst instability and balancing,outburst development,outburst transmission of coal and gas,as well as the regularity of distribution of regions where coal and gas outburst tend to take place are the research orientation for deepened study of the mechanism of coal and gas outburst.