In order to accurately predict coal and gas outburst risk at working face, a large number of measurements on basic gas parameters were taken on the basis of analysis and compilation of gas-geological data. The prediction indexes and critical values were determined with the study of the adsorption characteristics at 15# seam. With the prediction of outburst area, the prediction results were verified. This study shows that the adsorption ability of 15# seam is strong. Therefore, using a gas content oft-com:office:smarttags" />