The invention discloses a reinforcing structure and method of a double-cement tower in a coal gob area and aims at reinforcing a double-cement tower, keeping a favorable reinforcing deviation rectifying effect, meeting the requirement for safety operation of a line, reaching the operation standard of the line, realizing in-advance precaution and prevention of hidden dangers and keeping safety production. The adopted technical scheme is as follows: a strip-shaped foundation is poured on a double-cement tower foundation and is used as a foundation to be reinforced, a planar steel plate is embedded in the strip-shaped foundation and is fixedly provided with a plurality of groups of channel steel clinging to a pole body of the double-cement tower, the channel steel is provided with upright column channel steel fixedly connected with the pole body of the double-cement tower, the pole body of the double-cement tower is reinforced by using the channel steel and the upright column channel steel, meanwhile, a cross arm of the double-cement tower is supported by a U-shaped clamping slot in the top of the upright column channel steel, an insulator string which is hung by using a vertical steel cored stranded wire is hung at the lower end of every phase conductor of the double-cement tower, and a length-adjustable 45-DEG bracing wire is connected to the double-cement tower.