To　study　the　seismic　performance　of　bolted　beam-column　connection　in　bolted　assembled　multi-high-rise　steel　structures,　three　bolted　beam-column　connections　with　different　parameters　were　studied　through　tests　and　finite　element　analysis　(FEA).　The　seismic　performance　such　as　hysteretic　curves,　skeleton　curves,　ductility,　rotation　capacity　and　stiffness　degradation　curves　were　obtained,　and　the　impact　of　cover　plate　bolts　and　flange　bolts　on　key　mechanical　property　of　the　connections　were　analyzed.　The　result　indicates　that　the　rigid　and　variable　stiffness　beam-column　connections　can　be　achieved　by　adjusting　the　number　or　size　of　bolts　on　cover　plate.　Thus,　the　variable　stiffness　connection　do　not　slip　in　frequent　earthquake,　while　the　cover　plate　and　beam　flange　slip　past　each　other　in　medium　and　strong　earthquakes,　dissipating　energy　by　slip.　The　slipping　characteristics　were　obtained.　The　slipping　between　cover　plate　and　beam　flange　can　increase　deformability,　ductility,　energy　dissipation　of　the　connection,　and　the　energy　is　dissipated　by　slip,　which　can　be　used　in　the　structure　in　seismic　regions.　©　2017,　Editorial　Office　of　Journal　of　Building　Structures.　All　right　reserved.