In　order　to　investigate　the　influence　of　different　construction　exerting　on　seismic　behavior　of　circular　concrete-filled　steel　tubular　(CFST)　stub　columns,　low　cyclic　loading　tests　of　three　large-scale　CFST　stub　columns　with　different　constructions　were　conducted.　The　steel　components　of　the　specimen　was　set　as　steel　tube,　steel　tube　with　welded　horizontal　rib,　vertical　rib　and　steel　cage,　and　double-skin　steel　tube,　respectively.　The　latter　two　specimens　had　the　same　amount　of　steel.　The　axial　force　of　each　specimen　was　equal.　The　bearing　capacity,　stiffness　degradation,　hysteretic　behavior,　ductility,　energy　dissipating　capacity　and　failure　characteristics　of　each　specimen　were　analyzed.　The　tests　results　indicate　that　the　setting　of　vertical　ribs　can　improve　the　flexural　bearing　capacity　of　the　member,　the　horizontal　ribs　have　a　significant　confining　effect　on　the　radial　deformation　of　the　steel　tube.　Inner　steel　tube　has　strong　confining　effect　on　the　core　concrete,　which　enhances　the　plastic　deforming　capacity　of　the　outer　steel　tube.　Under　the　condition　of　having　the　same　amount　of　steel,　although　the　bearing　capacity　of　double-skin　steel　tube　is　slightly　lower　than　that　of　steel　tube　with　welded　horizontal　rib,　vertical　rib　and　steel　cage,　the　ductility　coefficient　and　accumulated　energy　dissipating　capacity　are　significantly　improved.　The　equivalent　viscous　damping　coefficients　of　each　specimen　with　different　constructions　are　0.41,　0.53　and　0.58,　possessing　favorable　energy　dissipating　performances.　The　test　results　of　CFST　column　bearing　capacity　under　combination　effect　of　compression,　bending　and　shear　are　higher　than　the　calculated　value　according　to　Chinese　code,　indicating　that　the　calculated　bearing　capacity　of　full-size　specimens　according　to　the　Chinese　code　shows　a　tendency　to　be　rather　safe.　©　2019,　Editorial　Office　of　Journal　of　Building　Structures.　All　right　reserved.