To　investigate　the　effects　of　plastic　hinge　zone　reinforcement　methods　on　the　seismic　performance　of　high-strength　concrete　shear　walls,　firstly,　four　high-strength　concrete　shear　walls　with　high-strength　reinforcements　were　designed　to　carry　out　low-cycle　loading　tests　and　ABAQUS　finite　element　analysis.　Secondly,　the　effects　of　three　reinforcement　methods　with　adding　steel　fibers,　adding　stirrups,　and　wrapping　steel　plates　on　the　failure　modes,　hysteretic　behavior,　load-bearing　and　deformation　capacity,　strength　and　stiffness　degradation,　deformability,　energy　dissipation　capacity,　and　the　development　length　of　plastic　hinge　zone　for　shear　walls　were　evaluated.　Finally,　the　equivalent　plastic　hinge　length　calculation　method　and　bearing　capacity　calculation　method　applicable　to　high-strength　concrete　shear　walls　with　high-strength　reinforcements　were　proposed.　The　results　show　that　the　three　strengthening　forms　effectively　reduce　the　degree　of　wall　damage,　diminish　the　proportion　of　shear　deformation,　and　improve　the　wall＇s　deformation　and　energy　consumption　capability.　When　the　heights　of　the　strengthening　sections　in　the　three　methods　are　equal,　the　addition　of　steel　fibers　is　the　most　effective　in　improving　the　damage　pattern　of　the　wall.　A　fitting　thickness　of　steel　plate　at　the　wall　base　can　make　the　plastic　hinge　zone　fully　develop　and　form　the　double　plastic　hinges,　significantly　enhance　the　peak　load　by　17.7%,　and　the　ultimate　drift　ratio　by　75.0%.　Based　on　the　simplified　curvature　distribution　and　basic　assumptions　of　plastic　deformation,　considering　the　balance　of　force　relationship,　and　the　bending　and　shear　deformation　coordination　relationship,　the　proposed　methods　for　calculating　the　equivalent　plastic　hinge　length　and　horizontal　bearing　capacity　show　a　high　level　of　precision.　©　2024　Central　South　University　of　Technology.　All　rights　reserved.