In order to solve gas outburst problem in Tao’er mine , the paper combined the geological characteristics of Tao’er mine, the gas geological regularity of No.2 seam in Tao’ er mine was studied and the influencing factors of the occurrence of coal seam gas were analyzed. Using coal seam gas parameters in combination with the method of gas geology analysis, the regional prediction of outburst dangerous area division was done, which can provide the decision-making basis for the prevention and control of gas, emergency rescue and disaster relief.