Abstract: In order to solve the problem of exceeding gas concentration at fully mechanized island mining face of Gushuyuan Coal Mine, we analyze the gas source of the mine. By using the method of expanding the roadway, removing roadway debris, repairing ventilation facilities, adjusting inclined mining face, hanging windbreak to optimize ventilation system, we strengthen gas drainage by wind, and use drillings to drain the coal seam and the upper corner gas at the same time, adopt the method of airtight intubation to drain the gas in the adjacent goaf. The gas control measures by wind and extraction ensure that the island mining face gas is not overrun, and guarantee the mine safety production.