The utility model discloses a special-shaped elbow for a cable bridge. The special-shaped elbow is formed by connecting a transverse structure with a longitudinal structure. The transverse structure comprises side edge plates and a bottom plate; the side edge plates are bent to form side edges and top edges; the bottom plate is welded with the bottom ends of two parallel side edge plates; the longitudinal structure is formed by welding five lateral plates; a first lateral plate is vertically connected with a second lateral plate; the second lateral plate is vertically connected with a third lateral plate; both sides of a four lateral plate are respectively and vertically connected with the lower ends of the first lateral plate and the third lateral plate; and a fifth lateral plate is respectively connected with the first lateral plate, the third lateral plate and the fourth lateral plate. The special-shaped elbow has a simple structure, is convenient to install, has high intensity and is difficult to deform; quarter turn rotation of a cable can be implemented; and the bottom plate is connected with the top edges in a welding manner, so that loading capacity of the elbow is ensured.