In　general,only　one　fixed　pier　is　set　in　a　continuous　bridge,so　aseismic　capacity　of　the　fixed　pier　is　difficult　to　satisfy　the　demand　in　a　strong　earthquake　area.To　solve　this　problem,a　self-centering　and　pier-bottom　seismic　isolation　structure　based　on　two-stage　design　(SPSIS-TD)　was　put　forward.Shaking　table　tests　were　conducted　to　verify　the　seismic　isolation　effect　of　the　self-centering　and　pier-bottom　seismic　isolation　structure,and　the　correctness　of　the　finite　element　model　was　verified　by　comparing　the　test　results　and　the　finite　element　results.Results　show　that　the　self-centering　and　pier-bottom　seismic　isolation　structure　can　reduce　the　seismic　responses　of　the　fixed　pier　efficiently.In　the　first　stage,the　seismic　responses　of　the　SPSIS-TD　system　are　almost　the　same　as　that　of　the　conventional　plastic　hinge　structure.In　the　second　stage,the　SPSIS-TD　system　can　not　only　effectively　reduce　the　seismic　responses　of　the　fixed　pier,but　also　reduce　the　residual　deformation　after　the　earthquake,which　has　a　better　self-centering　function.When　the　sealing　plates　on　both　sides　are　damaged,the　fixed　pier　will　swing,and　then　the　displacement　of　the　beam　end　will　increase.　©　2020,　Editorial　Board　of　Journal　of　Huazhong　University　of　Science　and　Technology.　All　right　reserved.