The utility model provides a promote anchor structure shear behavior's compound prestressed anchorage cable belongs to rock mass reinforcing technical field. This anchor rope includes and guiding cap, steel strand wires, expansion ring, lock ring ring, sleeve and slip casting pipe sets up the sleeve in the glide plane or near potential glide plane, can effectively promote the effect of shearing of anchor structure, and that has avoided that traditional prestressed anchorage cable leads to owing to lack the ability of shearing that large deformation or even instable slope destroy is not enough. Compare the cable in traditional prestressed anchorage, the utility model discloses multiplicable anchor rope arrangement spacing reduces anchor rope quantity simultaneously to save relevant material, time and input. The utility model discloses have simple process, maneuverability strong, save outstanding advantages such as resource, anti shear structure position -controllable.