In　high　buildings,　RC　core　wall　serve　as　main　component　that　resists　lateral　force.　There　has　been　little　experimental　study　on　RC　core　wall,　and　so　as　the　study　on　measures　of　improving　the　seismic　performance　of　RC　core　wall.　In　this　paper,　firstly,　on　the　basis　of　supporting　research　on　RC　shear　wall　with　concealed　bracings,　RC　core　wall　with　concealed　bracings　is　put　forward.　Secondly,　through　the　experimental　study　on　one　1/6　scale　core　wall　with　concealed　bracings　and　one　1/6　scale　normal　core　wall　under　low　cyclic　loading,　effects　of　concealed　bracings　on　failure　phenomena,　bearing　capacity,　stiffness,　ductility,　energy　dissipation,　hysteresis　property　and　steel　strain　of　reinforced　concrete　core　walls　are　discussed.　The　experiment　shows　that　the　ability　of　energy　dissipation　of　the　RC　core　walls　with　concealed　bracings　is　enhanced　remarkably,　and　the　seismic　performance　of　the　RC　core　walls　with　concealed　bracings　is　improved　greatly.