To　develop　a　new　type　of　bridge　seismic　system　of　the　rocking　structure　with　the　damage　control　characteristics　and　self-centering　capability,　the　seismic　design　method　and　engineering　application　of　the　self-centering　double-column　rocking　bridge　were　investigated　and　further　discussed.　Based　on　the　force　mechanism　of　rocking　piers　and　the　analysis　model　of　flag-shaped　hysteresis,　the　calculation　methods　of　the　residual　displacement　of　the　rocking　pier　in　the　depressing　state,　the　yield　state　and　the　design　limit　state　were　proposed.　And　the　verification　formula　of　recovery　ability　was　given,　when　the　drift　ratio　of　residual　displacement　was　limited　to　less　than　1%.　Considering　the　mechanical　behavior　and　deformation　mode　of　the　rocking　piers,　a　direct　displacement-based　seismic　design　method　for　rocking　bridge　was　put　forward　and　the　design　principles　and　design　steps　were　proposed.　Then　the　design　method　was　successfully　applied　to　the　seismic　design　of　the　Huangxu　road　overpass.　The　performance　state　and　its　index　under　different　levels　of　earthquake　excitation　for　rocking　bridge　were　analyzed　by　the　numerical　simulation.　Furthermore,　the　first　self-centering　rocking　bridge　project-Huangxu　Road　Overpass　project　was　established,　and　some　seismic　structural　details　of　the　bridge　were　demonstrated.　The　results　show　that　the　proposed　formula　provides　the　sufficient　theoretical　basis　for　the　design　and　calculation.　The　energy　dissipation　steel　bars　does　not　yield　and　has　a　high　safety　redundancy　under　E1　earthquake.　Under　E2　earthquake,　with　rocking　piers,　the　stiffness　of　the　rocking　piers　decreases.　The　increase　of　seismic　force　becomes　smaller　and　smaller,　and　the　structural　damping　function　is　realized　effectively.　The　residual　displacement　of　the　pier　is　small　and　can　be　neglected.　The　self-centering　function　and　the　goals　of　the　established　seismic　design　are　achieved.　©　2017,　Editorial　Department　of　China　Journal　of　Highway　and　Transport.　All　right　reserved.