Taking　the　effect　of　composite　action　of　profiled　steel　sheet-concrete　slabs　into　consideration,　experimental　research　on　the　static　performance　of　the　concrete-filled　square　steel　tubular　column　to　H-section　steel　beam　bolted　connection　was　carried　out.　Static　loading　tests　were　performed　on　three　full　scale　specimens　under　the　circumstances　of　no-floor　slab,　floor　slab　under　pressure,　floor　slab　under　tension,　to　investigate　the　mechanical　properties　of　the　connections　under　monotonic　loading,　such　as　the　initial　rotational　stiffness　and　ultimate　bearing　capacity,　etc.　The　effect　of　composite　action　of　floor　slabs　on　its　mechanical　performance　under　the　positive　and　negative　bending　moments　was　also　studied.　The　results　show　that　the　beam-end　displacement　ductility　coefficient　of　the　no-board　joint　specimen　is　beyond　2.2,　which　satisfies　the　seismic　design　requirement.The　performance　difference　between　composite　joints　and　no-board　joints　is　obvious.　Compared　to　the　pure　steel　beam,　the　neutral　axis　of　composite　beam　cross　section　moves　up,　and　the　initial　rotational　stiffness　and　ultimate　bearing　capacity　of　composite　joints　are　increased　significantly.　The　time　of　bolt　starting　sliding　at　composite　joints　is　delayed,　and　the　maximum　slippage　decreases.　The　shear　deformation　of　joint　core　area　can　be　ignored.　©　2017,　Editorial　Office　of　Journal　of　Building　Structures.　All　right　reserved.