In　order　to　study　the　seismic　behavior　of　reinforced　concrete　core　wall　under　multi-dimensional　loading,　two　reinforced　concrete　core　wall　models　were　built　and　tested　to　failure.　One　wall　model　was　under　uniaxial　cyclic　lateral　loading　and　the　other　was　under　biaxial　cyclic　lateral　loading.　This　paper　presents　the　results,　including　failure　mode,　hysteretic　behavior,　load-carrying　capacity,　ductility,　energy　dissipation　ability.　It　can　be　seen　that　the　biaxial　cyclic　lateral　loading　has　important　effect　on　the　seismic　behavior　of　reinforced　concrete　core　wall.　Under　biaxial　cyclic　lateral　loading,　stiffness　and　load-carrying　capacity　of　the　specimen　are　decreased　and　the　ductility　performance　is　reduced　markedly.