In　order　to　investigate　the　seismic　behavior　of　high-strength　concrete　columns　with　HRB600　steel　bars,　cyclic　loading　tests　on　nine　high-strength　concrete　columns　reinforced　with　HRB400　and　HRB600　steel　bars　were　carried　out　under　practical　axial　compression　ratio.　The　main　design　parameters　of　specimens　were　steel　grade,　stirrup　spacing,　concrete　strength　and　axial　compression　ratio.　The　failure　modes,　hysteretic　properties,　load-carrying　capacity,　ductility,　stiffness　degradation　and　energy　dissipation　capacity　of　specimens　were　analyzed　and　compared.　Based　on　the　test　results,　a　restoring　force　model　of　high-strength　concrete　column　with　HRB600　steel　bars　was　established.　The　research　results　indicate　that　the　specimens　have　similar　failure　modes,　which　appear　to　be　ductile　bending　failure　with　plastic　hinge　occurring　at　column　bottom,　local　buckling　of　longitudinal　reinforcement　and　spalling　of　concrete　cover.　It　is　shown　that　the　high-strength　concrete　columns　with　HRB600　steel　bars　possess　good　hysteretic　behavior,　deformability　and　energy　dissipation　capacity　as　well　as　the　seismic　resilience.　In　the　design　of　high-strength　concrete　columns,　the　conjunction　of　HRB600　steel　bars　and　C80　grade　concrete　has　good　application　performance.　With　reasonable　design　of　stirrups,　the　ductility　ratio　of　the　high-strength　concrete　columns　with　HRB600　steel　bars　under　a　high　axial　compression　ratio　can　be　greater　than　4.0.　The　restoring　force　model　established　from　full-scale　specimen　tests　has　satisfactory　calculation　accuracy,　which　can　be　used　for　seismic　elastic-plastic　analysis　of　related　engineering　structures.　©　2019,　Editorial　Office　of　China　Civil　Engineering　Journal.　All　right　reserved.