Abstract: In order to eliminate the coal and gas outburst danger at 15111 working face in shigang coal mine, the parallel drilling along seam and the cross-grid drilling are adopted to implement the gas drainage. According to the standards of Coal Mine Safety Rules and Basic Indexs of gas Drainage of Coal Mine (AQ1026-2006), drilling index, gas index and gas pre-drainage rate are adopted to evaluate the effect of outburst elimination, at the same time, the reliability of the evaluation results is analyzed. Datum show that the layout of pre-drainage drillings is reasonable, the drilling quantity of per ton coal is 0.136 m/t, no blank zone is left; the residual gas content is 1.70~7.94 m³/t, the residual gas pressure is 0.09~0.46 MPa; and the gas pre-drainage rate is above 30%. Results show that the effect of outburst-elimination measures in 15111 working face is obvious, the outburst danger has been removed and it is feasible to implement safety mining.