In order to solve gas outburst of Shimen cutting through coal seam problem, -960m pathway Shimen technology cutting through B11 coal seam of Xieyi Mine of Huainan Mining Industry was taken as example, three kinds of outburst prevention of Shimen cutting through coal seam were introduced, the technology and application effect of ground drilling mining pre-drainage auxiliary outburst prevention, hydraulic pressure burst anti-reflection and hydrodynamic cleaning anti-reflection were introduced, the new technology controlled drilling hole outburst under high gas pressure and large gas content, improved the underground drilling efficiency, eliminated the potential threat of coal and gas outburst, shortened the cutting through coal seam period, provided reference for a series of gas control technology by horizontal mining.