Abstract: In order to study the gas emission law as to provide basis of the gas disaster control in coal mines, taking Yangquan Mining Area as a study object, the s tudy showed that the major influence factors of the gas emission would be the mining depth, coal mining technology, geological structure, hydrogeology and others. The paper provided the pressure releasing and permeability improved gas drainage in protective seam mining, gas drainage with surface borehole drilling, gas drainage tec hnology of high level gas drainage gateway and gas outburst prevention gateway and other gas control measures. The paper pointed out that the mine gas as valuable quality clean energy, the safety and high efficient coal and gas simultaneous mining and coal mining- gas mining integrated mining idea should be fully implemented.