To　study　the　seismic　performance　of　a　thin-walled　square　steel　tube　beam-column　joint　of　a　light　steel　frame,　8　kinds　of　thin-walled　square-hollow　structural　steel　(HSS)　and　concrete-filled　steel　tube　(CFST)　beam-column　joints　with　different　joint　details　were　designed　and　manufactured.　The　joint　details　were　divided　mainly　into　welded　joint,　plate　joint,　angle　joint　and　angle　with　stiffener　joint.　A　total　of　14　specimens　of　beam-column　joint　specimens　were　tested　using　a　low　reversed　cyclic　loading　test.　The　failure　characteristic,　load-bearing　capacity,　hysteretic　property,　stiffness　degradation　and　energy　dissipation　were　compared.　The　results　showed　that　the　different　joint　details　had　a　great　influence　on　the　seismic　performance　of　the　beam-column　joint.　The　bearing　capacity　and　failure　rotation　of　the　welded　joint　were　poor.　The　bearing　capacity　of　the　plate　joint　was　close　to　that　of　the　welded　joint,　but　it　showed　improved　bearing　capacity,　failure　rotation　and　energy　dissipation　capacity　of　the　joint.　The　bearing　capacity　of　the　angle　joint　was　poor.　With　the　angle　welded　stiffener,　the　bearing　capacity,　stiffness　and　energy　dissipation　capacity　of　the　joints　were　significantly　improved.　The　number　and　height　of　the　stiffener　can　improve　the　seismic　performance　of　the　joint.　The　stiffness　and　energy　dissipation　capacity　of　the　CFST　beam-column　joint　was　better　than　that　of　the　HSS　beam-column　joint　with　the　same　joint　detail.　The　classification　of　the　joint　is　discussed,　and　a　simplified　M-R　calculation　model　is　proposed.