The invention discloses a slope slip protection system, which comprises a bottom bracket installed in the longitudinal direction of the cliff road, a plurality of ceilings installed side by side alongthe longitudinal direction of the road on the top of the bottom bracket and a damping device disposed between the ceiling and the bottom bracket, a support column is fixed vertically along the transverse inner side of the bottom bracket, the support column is hinged to the transverse inner side of the ceiling so that the transverse outer side of the ceiling can swing up and down, and the dampingdevice is supported between the ceiling and the bottom bracket and is used to form damping for the swing of the ceiling; the large impact resistance of the shed hole is ensured, the cost of the shed hole is effectively reduced, the construction period is shortened and the maintenance and repair are easy.