The invention relates to a method for gas resourceextraction of a reversed F-shaped ground well in a mining area, and belongs to the technical field of coal mine gas extraction. According to the method for extracting gas resourcesin a goaf, the problem that gas is transfinite on a coal face, an upper corner and a return airway is solved. The method mainly comprises the steps that (1) layer position of horizontal well section of the reversed ''F''-shaped ground well in the mining area is determined; (2) the plane position of the horizontal well section of the reversed ''F''-shaped ground well in the mining area is determined; (3) the drilling well completion technology of the reversed ''F''-shaped ground well in the mining area is carried out; and (4) gas of the reversed ''F''-shaped groundwell in the mining area is safely extracted and controlled. Therefore, the complete method for gas resourceextraction of the reversed ''F''-shaped ground well in the mining area can be formed, and the safety of gas in coal face and extraction gas resources in the goaf can be effectively ensured.