An anti-wear guiding support for an outer adumbral curtain hand strap of a building comprises a base (1), a guiding wheel bracket (2), a guiding wheel (3), a pinch roller (4), a cover plate (5) and wheel shafts (6), wherein the guiding wheel bracket (2) is inserted and located on the base (1), the guiding wheel (3) and the pinch roller (4) are respectively arranged in the guiding wheel bracket (2) through the respective wheel shaft (6) in a rotating mode, and the cover plate (5) is arranged on the guiding wheel bracket (2). The base (1) and the cover plate (5) are respectively provided with a through hole for a hand-pulling band (7) to penetrate. The guiding support is characterized in that the guiding wheel (3) and the pinch roller (4) are installed in parallel, two ends of the guiding wheel (3) are respectively provided with a circular wing edge (8) used for preventing the hand-pulling band (7) from deviating the guiding wheel (3), and the distance between an outer side of a wing edge of the circular wing edge (8) and the pinch roller (4) is less than the thickness of the hand-pulling band (7). The anti-wear guiding support for the outer adumbral curtain hand strap of the building is simple in structure, convenient to install, strong in applicability, low in cost, and easy to popularize and use on various outer adumbral curtains.