In　order　to　investigate　the　seismic　performance　of　recycled　aggregate　concrete　filled　circular　steel　tube　columns,　seven　full-scale　specimens　with　different　replacement　ratio　of　recycled　coarse　aggregate,　shear　span　ratio,　and　axial　compression　ratio　were　designed,　and　their　pseudo　static　test　studies　were　carried　out.　The　failure　characteristics,　hysteretic　curves,　bearing　capacity,　ductility,　stiffness　degradation　and　energy　dissipation　capacity　of　specimens　were　compared　and　analyzed.　Test　results　showed　that　at　the　later　loading　stage　all　the　specimens　were　found　to　have　bulged　outward　on　the　bottom　of　steel　tubes,　and　some　of　the　ones　with　smaller　shear　span　ratio　had　a　fracture　on　the　tensile　side　at　the　bottom.　The　hysteresis　curves　of　the　specimens　basically　presented　the　spindle　shape　and　were　relatively　plump.　The　ductility　of　all　the　specimens　was　good　as　well.　Different　replacement　ratios　of　coarse　aggregate　had　little　influence　on　the　seismic　performance　of　specimens.　With　the　increase　of　shear　span　ratio,　the　bearing　capacity　of　the　specimens　decreased　while　ductility　increased.　As　the　axial　compression　ratio　increased,　the　ductility　of　specimens　decreased.　The　seismic　performance　of　specimens　was　good　enough　to　meet　the　seismic　requirements.　Based　on　two　relevant　codes　in　China,　the　compression　bending　capacity　of　recycled　aggregate　concrete　filled　circular　steel　tube　columns　from　this　article　and　other　documents　was　calculated　and　compared.　It　was　found　that　the　relevant　formula　in　the　codes　of　China　were　safe　for　full-scale　recycled　aggregate　concrete　filled　circular　steel　tube　columns.　©　2018,　Editorial　Board　of　Journal　of　Tianjin　University(Science　and　Technology).　All　right　reserved.