In order to solve the problem of mining imbalance caused by poor gas control effect in Fusheng Coal Mine and ensure the production reaching the standard, the mining protective layer pressure relief and outburst elimination measures were decided. Through the reasonable selection of multiple protective layers for mining, and the comprehensive comparative analysis of each protective layer from the aspects of mining safety, protection effect and economic benefit, the bauxite mudstone of the lower protective layer is finally determined as the protective layer mining of No. 15 coal seam. It is estimated that the risk of coal seam outburst can be completely eliminated. At the same time, the cost of gas control can be saved by 18.5782 million yuan in a single working face. The single entry level of tunneling roadway can be increased from 100 m / month to 200 m / month, and the annual output of mine can be increased from 800 000 t to 1.2 million t.