Shaqu Mine 22201 working face was taken as an example, based on gas coal seam group mining protective layer pressure relief gas control problem, combining the advantage of Y type ventilation with the advantage of goaf internal space store pressure relief gas mined-out area, gob-side entry retaining Y-type ventilation system combining drilling extraction technology was conducted in the initial mining face, which realized the gas layer coal seam group initial mining working face safe and efficient mining. The results of the study provided the reference for the future similar mining deep coal seam group of initial layer of pressure relief gas control.