In　order　to　further　study　the　seismic　behavior　of　reinforced　concrete　core　wall　and　factors　influence,　two　reinforced　concrete　core　wall　models　with　large　height-width　ratio　are　built　and　tested　under　the　combined　action　of　constant　axial　load　and　reversed　cyclic　lateral　load.　Failure　mode,　hysteretic　behavior,　load-carrying　capacity,　ductility,　energy　dissipation　ability,　shear　lag　effect　of　the　stiffness　of　coupling　beam　on　each　core　wall　was　investigated.　This　result　indicate　that　the　final　overall　bending　damage　occurres　at　the　bottom　of　each　model　and　that　the　stiffness　of　coupling　beam　have　important　effects　on　the　seismic　behavior　of　reinforced　concrete　core　wall.　With　the　span-depth　ratio　of　coupling　beam　dropping　from　1.7　to　0.9,　the　stiffness　and　load-carrying　capacity　of　the　specimen　has　risen　markedly,　but　the　ductility　performance　drops　significantly.