Abstract: Abstract: According to the reality of goaf gas drainage in early and normal stage for sihe coal mine, simply analysis resource of goaf gas. Based on the vertical distribution of mining, design and construction of lowly-located drilling, mid-located drilling, highly-located drilling, floor interception drilling, convergence to succeed, with the mutual interaction extraction goaf gas sources, each borehole reached and exceeded the expected results, the formation of four drilling gas drainage model to improve the gob gas drainage efficiency, to some extent, solve the gas problem.