The utility model relates to clamp piers special for angle ring longitudinal damage repairing and belongs to the technical field of transformer auxiliary equipment. According to the technical scheme, the clamp piers comprise an arc clamp plate (2), an auxiliary pressing rod (3), two clamp pliers handles (4), a pressure support rod (5), an opening adjusting bolt (6) and a decompression rod (7). The arc clamp plate (2) is disposed at the front end and fixedly connected with the auxiliary pressing rod (3). The clamp pliers handles (4) are fixedly connected with the rear of the auxiliary pressing rod (3). The pressure support rod (5) is disposed between the two clamp pliers handles (4). The opening adjusting bolt (6) is disposed at the tail of one of the clamp pliers handles (4). The decompression rod (7) is mutually connected with the pressure support rod (5). The clamp piers have the advantages that the clamp piers are even in stress, high in clamping force, good in radian shaping, capable of avoiding bubbles and residual adhesives and the like, angle rings can be repaired as new, economical loss can be retrieved, and normal and ordered production can be guaranteed.