Simulation　analyses　of　RC　short　columns　are　conducted　under　oblique　horizontal　seismic　action　monotonically　using　ABAQUS　software.　Concrete　damaged　plasticity　model　is　used　for　concrete.　Ideal　elastic-plastic　model　is　taken　for　steels.　The　results　show　that　when　the　axial　compression　ratio　was　relatively　low,　the　capacity　of　the　columns　increased　with　the　increasing　of　load　angle,　because　of　the　effect　of　tensile　bars.　For　the　relatively　high　axial　compression　ratio,　the　bearing　capacity　decreased　with　the　increasing　of　angle,　because　of　the　effect　of　concrete　in　compression　area.