With the mining area of the Fengfeng mining area gradually deeper, the coal seam in the deep area with the characteristics of high gas pressure and high content, the unilateral pressure relief gas drainage technology on the working side could not solve the gas control problem in the deep area. The research mainly used the technology of moving through the long-hole drilling and unloading gas in the construction of the two working roadway of the protective layer working surface to solve the problem of gas overrun in the working face during the mining of the protective layer, and also through the gas pressure relief. The technology solved the problem of coal and gas outburst and minimized the gas content of the coal in the protected layer, and ensured the safety during the mining of the protected layer.