In　order　to　study　the　seismic　performance　of　rectangular　hollow　bridge　piers,　a　quasi-static　test　under　uniaxial　and　biaxial　compression-bending　was　conducted.　Force　process,　failure　mechanism,　hysteretic　behavior,　load-carrying　capacity,　ductility　and　energy　dissipation　ability　of　the　structure　under　different　loading　condition　were　studied.　The　results　show　that,　the　failure　pattern　of　these　specimens　were　flexural　failure　mode,　but　due　to　the　coupling　effect　of　bidirectional　action　on　the　bridge　pier　column　in　biaxial　bending,　the　load-carrying　capacity,　deformability,　ductility　and　energy　dissipation　ability　were　severely　weakened.　Based　on　the　preliminary　results,　the　study　on　seismic　performance　of　rectangular　hollow　bridge　piers　is　probably　unsafe　if　we　consider　the　piers　only　with　uniaxial　compression-bending.