The invention discloses a full wafer type short-circuit type LED support structure. The LED support structure comprises a mounting block, wherein a fixed block is fixedly connected to the mounting block; a first groove is formed in the upper surface of the mounting block, and a second groove is formed in the lower surface of the fixed block; two sliding rails are symmetrically arranged on the inner side walls of the first groove, each sliding rail is connected with a connecting block in a sliding mode, and the two connecting blocks are jointly connected with a first mounting frame; two third grooves are symmetrically formed in the inner walls of the first groove, a ball screw is vertically arranged in each third groove, and the lower ends of the ball screws are connected with motors arranged in the third grooves; and the two ball screws are jointly provided with a movable block in a sleeved mode, and a supporting rod is fixedly connected to the upper surface of the moving block. The full wafer type short-circuit type LED support structure has the advantages of being ingenious in structure, convenient in use, operation is carried out by adopting a plurality of connecting methods, and the full wafer type short-circuit type LED support structure is not prone to fall off, is not prone to be affected by temperature, can be disassembled and assembled conveniently, can be use and maintained for many times conveniently, and the is worthy of popularization.