Arch bridge suspender convenient to replace and method for replacing the same

The invention provides an arch bridge suspender convenient to replace. The arch bridge suspender comprises a steel pull rod module, an inhaul cable anchor and a supporting frame, wherein the supporting frame is provided with a pipe column-shaped structure; the cross section of the supporting frame is shaped like a circular ring or polygonal ring; a central through hole of the supporting frame can allow an inhaul cable body to pass through; the inhaul cable anchor comprises the inhaul cable body and anchor heads, wherein the anchor heads are positioned at two ends of the inhaul cable body; one of the anchor heads is an prefabricated anchor head, and the other of the anchor heads is a field mounting anchor head; in a working state, one of the supporting frame is fixed on a bridge structure; a prefabricated anchor head of the inhaul cable anchor is at the other end of the supporting frame; the field mounting anchor head end of the inhaul cable anchor is connected with one end of the steel pull rod module; the other end of the steel pull rod module is fixed on the other bridge structure; and the bridge structure is an underbridge cross beam or a bridge arch rib. The arch bridge suspender provided by the invention is especially suitable for arch bridges with smaller embedded pipe internal diameters to use during replacing old suspenders; and through the adoption of a method for replacing the suspender, the replacing construction of the suspender can obtain effects of no damage to the original structure of the bridge and convenience for mounting.