To　study　the　seismic　performance　of　double-skin　steel-concrete　composite　box　(DSCB)　piers,　a　total　of　11　DSCB　pier　specimens　were　tested　under　bidirectional　cyclic　loading.　The　effects　of　the　loading　pattern,　the　steel　plate　thickness,　the　axial　load　ratio,　the　slenderness　ratio　and　the　aspect　ratio　were　taken　into　consideration.　The　damage　evolution　process　and　failure　modes　of　the　tested　specimens　are　presented　in　detail.　Test　results　are　also　discussed　in　terms　of　the　hysteretic　curve,　skeleton　curve,　ductility　and　energy　dissipation　capacity　of　DSCB　pier　specimens.　It　can　be　concluded　that　the　hysteretic　performance　of　DSCB　piers　in　one　direction　is　affected　and　weakened　by　the　cyclic　loading　in　the　other　direction.　DSCB　piers　under　bidirectional　cyclic　loading　exhibit　good　performance　in　terms　of　load　carrying　capacity,　ductility,　and　energy　dissipation　capacity.　Overall,　DSCB　piers　can　meet　the　basic　aseismic　requirements.　The　research　results　can　be　taken　as　a　reference　for　using　DSCB　piers　as　high　piers　in　bridges　in　strong　earthquake-prone　areas.　©　2016,　Editorial　Department　of　Journal　of　Southeast　University.　All　right　reserved.