Based on Dongpang Mine 21217 working face large volume of gas, which affected mine high yield and high efficiency mining work, and close to the wind without solving the problem of gas overrun. According to the reality of the working face, drainage before mining, mining with drainage were adopted, highly-located borehole drainage goaf gas, blow dryer drainage corner gas, which successfully solved the gas of the mine gas control problem, provided technical experience and reference for the gas control of similar mine.