Abstract: As the first mining layered of a special thick seam, Fully mechanized mining face 0102102 has a Characteristics of high gas content and emission and a high permeability coal seams. Based on geological conditions, And analysis of the main sources of influence Face Gas Emission.Through the three-dimensional grid of Comprehensive Extraction Technology,Using present seam extraction technology of Directional drilling、Cross - seam Holes、drilled along seam and adjacent layer drainage technology of Directional drilling pre-drainage gas. During mining ,Also using drilled along seam in present seam combine with gob gas drainage technology of buried pipe in The upper corner、high position boring、Surface borehole and buried pipe in gas tunnel，Then a large amount of pressure relief gas is drainage pertinently. Gas decreased by 70%,the volume of gas pumping recovery period reached 79.2 m3/min. And ensure the safety mining in first Mining Era of Thick and High Gas Seam.