The invention discloses a well-matched ox horn pad structure for transposition of large-scale transformer wire winding. The ox horn pad comprises an inner ox horn pad positioned inside the winding and an outer ox horn pad positioned outside the winding; each of the inner ox horn pad and the outer ox horn pad has an inner arc and an outer arc; each of the outer arc of the inner ox horn pad and the inner arc of the outer ox horn pad is divided into a head section and a main body section; in the axial direction of the winding, a winding cushion block is arranged between the inner ox horn pad and a winding lead and between the outer ox horn pad and the winding lead. The outer arc of the inner ox horn pad is divided into two sections, and the inner arc of the outer ox horn pad is divided into two sections rather than adopting single arcs; a shearing force generated during transposition can be obviously reduced in comparison with a traditional ox horn pad, a coating insulation layer of the lead is protected, and the short circuit resistance of the winding is improved. The inner ox horn pad and the outer ox horn pad are well matched with the winding, a transposition gap is totally tightly filled besides necessary oil paths, a coil is pressed uniformly when being subjected to pressing, and the insulation layer is prevented from damage caused by local pressing.