Abstract: The west and north of Jincheng mine area are high gas area, and gas control is difficult. The large gas emission in gob seriously restricts the safety production of mine during mining process. For solving these technical problems, Yuecheng coal mine has respectively explored and adopted the drainage technology of gas drainage by buried pipe in gob, ground drilling gob drainage, high drilling gob drainage technology in return airway, which achieved significant results. For further improve the gas drainage efficiency in gob, ensure the safety production in fully mechanized working face, by means of applying and researching the higher level drainage technology in gob of fully mechanized working face, Yuecheng coal mine has collected the drainage parameter of higher level drilling extraction in gob, analyzes the gas extraction results of gob, evaluates the effectiveness of higher level drilling extraction in gob, through which the key indicators of higher level extraction technique in gob have been obtained.