Horizontal　low　cyclic　loading　tests　of　seven　variable　cross-sectional　concrete　filled　steel　tubular　(CFST)　laced　columns　with　experimental　parameters　of　longitudinal　slope　and　arrangement　type　of　lacing　tubes　were　carried　out　by　quasi-static　test　method　in　order　to　learn　their　seismic　performance.　Based　on　test　results,　the　rules　of　failure　mode,　hysteresis　loop,　skeleton　curve,　ductility,　energy　dissipation,　strength　degradation,　stiffness　degradation　and　deformation　recovery　capability　of　specimens　were　researched.　Test　results　indicate　that　hysteresis　loops　of　specimens　are　plump　without　obvious　pinching,　and　they　have　good　seismic　performance.　The　failure　mode　of　specimens　are　basically　the　same　integral　bending　failure.　With　the　increase　of　longitudinal　slope,　the　horizontal　load　carrying　capacity　of　laced　column　increases,　energy　dissipation　capacity　improves,　and　stiffness　degradation　rate　increases　slightly.　The　influence　of　arrangement　type　of　lacing　tubes　on　displacement　ductility　is　relatively　big.　Compared　with　CFST　laced　columns　with　flat　lacing　tube,　CFST　laced　columns　with　inclined　lacing　tube　have　larger　initial　stiffness　and　horizontal　peak　load,　smaller　energy　dissipation　capacity　and　more　obvious　strength　degradation.　©　2018,　Editorial　Office　of　Journal　of　Building　Structures.　All　right　reserved.