High　and　steep　slopes　which　have　developed　fractures　and　intercalations　are　a　great　threat　to　the　operation　of　dams　and　reservoirs.　In　this　work,　the　geological　conditions　and　potential　modes　of　failure　of　the　slope　found　in　the　right　bank　of　Suofengying　hydropower　station　are　investigated　for　the　slope　stability　and　the　results　are　presented.　In　order　to　strengthen　the　slope,　an　innovative　stabilization　scheme　is　employed.　The　stabilization　techniques　include　development　of　anti-shear　tunnels,　anti-slide　piles,　anchor　cables,　concrete　support　structure,　etc.　Further,　the　slope　stability　and　reinforcement　effects　using　various　stabilization　techniques　are　studied　by　using　finite　element　strength　reduction　method.　Moreover,　in　situ　monitoring　is　carried　out　and　the　data　obtained　is　analyzed.　From　the　results,　it　is　observed　that　the　deformations　that　are　detected　using　multipoint　extensometers　have　decreased　after　the　installation　of　remedial　reinforcements.　From　the　analysis　of　remedial　reinforcement　methods,　it　is　found　that　the　most　critical　reinforcement　is　the　development　of　anti-shear　tunnels.　In　order　to　monitor　the　stresses　in　stirrups　and　the　propagation　of　cracks　in　the　anti-shear　tunnels,　three　levels　of　safety　monitoring　index　are　proposed.　The　safety　monitoring　index　is　developed　based　on　the　results　obtained　by　the　simulation　of　the　process　of　failure　of　the　reinforced　slope.　The　developed　safety　monitoring　index　is　further　applied　to　the　Suofengying　project　in　order　to　evaluate　the　overall　stability　of　the　slope.　The　results　obtained　by　monitoring　indicate　that　the　performance　of　the　reinforcement　structures　is　satisfactory　and　the　slope　has　better　stability.　The　methodology　proposed　in　this　work　shall　be　useful　for　similar　projects　to　obtain　stability　of　slopes.