As one of the natural disasters, coal and gas outburst is a serious threat to mine safety and production. It has a sudden and devastating effect. It is the critical base of preventing and controlling gas disaster effectively, developing and utilizing gas resources efficiently to predict the coal and gas outburst risk accurately. At the same time, it is also the key technical issues and important research topic in the field of mine safety. This paper combined Fuzzy Clustering theory, Rough Set theory and Sup...