Based　on　the　advantages　of　concrete　filled　steel　tube　(CFST)　column　and　reinforced　concrete　(RC)　beam,　a　new　type　of　CFST　column-RC　beam　joint　connected　by　U-shaped　steel　plate　and　studs　is　proposed　in　this　paper.　In　order　to　study　the　seismic　performance　of　the　new　type　of　joint,　two　full-scale　CFST　column-RC　beam　joints　and　one　traditional　RC　joint　were　designed　and　manufactured,　and　the　low-cycle　reciprocating　load　test　was　carried　out.　Results　show　that　the　failure　mode　of　the　CFST　column-RC　beam　joint　was　similar　to　that　of　the　traditional　RC　joint　that　both　of　the　joints　had　flexural　failure　at　beam　ends.　The　failure　area　was　mainly　outside　the　U-shaped　steel　plate　edge,　and　the　plastic　hinge　area　moved　outwards.　The　beams　of　the　cross　joint　were　named　as　S　beam　and　N　beam　according　to　the　specimen　installation　positions　of　the　test　site.　Compared　with　the　RC　joint,　the　bearing　capacity　of　the　N　beam　of　CFST　column　interior　joint　and　side　joint　increased　by　11.6%　(13.0%　in　negative　direction)　and　5.3%　(7.5%　in　negative　direction)　respectively,　and　that　of　the　S　beam　of　the　CFST　column　interior　joint　increased　by　20.2%　(19.6%　in　negative　direction).　The　load-displacement　hysteresis　curves　showed　a　plump　shape.　The　accumulative　energy　dissipation　of　the　CFST　column　interior　joint　and　side　joint　increased　by　17.0%　(36.0%　for　S　beam)　and　20.1%　compared　with　the　RC　joint.　The　displacement　ductility　coefficient　of　each　specimen　was　higher　than　4.0,　and　that　of　the　interior　joint　and　side　joint　of　the　CFST　column-RC　beam　increased　by　2.4%　and　21.3%.　Therefore,　the　new　type　of　CFST　column-RC　beam　joint　showed　good　deformation　ability.　©　2020,　Editorial　Board　of　Journal　of　Harbin　Institute　of　Technology.　All　right　reserved.