The low-retraction anchor is a specially developed prestressing anchor with low retraction and high efficiency, designed to address the issue of excessive retraction during tensioning and releasing of short prestressing bundles, which leads to significant permanent prestress loss. It can be widely used in large-span prestressed concrete continuous beams, continuous rigid frame bridges, vertical prestressed structures in railway beams, circumferential and transverse prestressed structures in cable-stayed bridge towers, slope anchoring prestressed structures, and other structures with short prestressing tendons. Each set of low-retraction anchors includes an anchor plate, nut, clips, anchor plate, and spiral reinforcement. As a tension end anchor, the other end typically uses a conventional round anchor with the same number of holes.