The invention provides a wire stripping mechanism. The wire stripping mechanism has the advantages of simple structure, convenience and rapidness in wire stripping, improvement of production efficiency and good wire stripping quality, and comprises a rack, wherein the rack is provided with a clamping air cylinder which is horizontally arranged; a connecting block is connected with the front end of a piston rod of the clamping air cylinder; the connecting block is hinged to two first connecting rods; the two first connecting rods are symmetrically up and down; the first connecting rods are connected with second connecting rods respectively; each second connecting rod comprises a first swinging arm and a second swinging arm, and a hinging point is arranged between the first swinging arm and the second swinging arm; the second connecting rods are rotatably mounted on the rack through the hinging points; the first swinging arms are hinged to the first connecting rods; wire stripping chucks are mounted at the front ends of the second swinging arms respectively, and the two wire stripping chucks are matched to carry out wire stripping.