Through the analysis of relevant literature review and geological data in Qianjiaying Mine, the geological tectonic factors are divided into five parts: buried depth contour,fault number,fault average drop,fault average length and fault density. By means of cluster analysis and analytic hierarchy process,five parts of geological structure factors are simplified,and the weights of geological structure factors at various levels in Qianjiaying Mine are confirmed. According to the statistics of gas outburst ind...