In　order　to　further　study　the　seismic　behavior　of　reinforced　concrete　core　wall　and　factors　influencing,　two　reinforced　concrete　core　wall　models　with　large　height-width　ratio　were　built　and　tested　to　failure　under　the　combined　action　of　constant　axial　load　and　reversed　cyclic　lateral　load.　The　axial　compression　ratio　on　each　core　wall　was　different.　This　paper　presents　the　results,　including　failure　mode,　hysteretic　behavior,　load-carrying　capacity,　ductility,　energy　dissipation　ability,　shear　lag　effect.　The　final　overall　bending　damage　occurred　at　the　bottom　of　each　model.　With　the　axial　compression　ratio　increasing　from　0.2　to　0.5,　stiffness　and　load-carrying　capacity　of　the　specimen　had　risen　markedly,　but　the　ductility　performance　dropped　significantly.　It　can　be　seen　from　the　analysis　that　the　axial　compression　ratio　having　important　effect　on　the　seismic　behavior　of　reinforced　concrete　core　wall.