Reinforced　concrete　hollow　bridge　piers　are　widely　used　in　hign-pier　and　long-span　bridges,　2　reinforced　concrete　hollow　bridge　pier　models　with　large　scale　were　built　and　tested　under　contant　axial　load　and　horizontal　biaxial　bending.　The　aim　is　to　research　the　seismic　performances　and　its　influencing　factors　of　the　2　pier　models.　Studying　how　axial　compression　ratio　affect　the　seismic　performance　of　hollow　bridge　columns,　such　as　failure　mechanism,　load-carrying　capacity,　ductility,　stiffness　and　energy　dissipation　ability.　The　results　show　that,　under　axial　load　and　biaxial　bending,　these　specimens　present　flexural　failure　mode　and　ultimate　performance　is　dominated　by　flexural　capacity　due　to　the　rupture/buckling　of　tensile　longitudinal　rebars　at　the　bottom　of　the　bridge　columns.　As　the　axial　compression　ratio　increases　from　0.1　to　0.2,　the　bearing　capacity　of　the　specimen　increases　greatly,　the　stiffness　increase　to　a　certain　extent　and　the　ductility　decrease　insignificantly　while　the　energy　dissipation　capacity　is　increased　by　87%,　however,　the　absolute　value　of　total　cumulative　hysteretic　energy　is　not　magnificent.