A　kind　of　prefabricated　steel-frame-joint　with　a　Z-shaped　cantilever　beam　splicing　is　presented.　The　basic　specimen　is　designed　by　the　base　of　slip　energy　dissipation,　and　six　specimens　are　obtained　by　changing　the　key　parameters.　The　low-reversed　loading　tests　of　six　such　specimens　are　conducted.　The　joint　failure　modes　and　splicing　slippages　are　analyzed;　the　hysteresis　curves,　skeleton　curves,　energy　dissipation　capacity,　rotational　capacity　and　stiffness　degradation　of　the　joint　are　obtained.　The　results　show　that　the　connection　with　a　Z-shaped　cantilever-beam　splicing　is　a　semi-rigid　connection,　and　that　the　deformation　performance　of　the　connection　is　good.　The　joint　can　utilize　the　frictional　slipping　of　a　splicing,　and　the　bearing　of　bolts　to　the　hole-surfaces　and　plates　can　dissipate　energy　effectively.　The　appropriate　reduction　of　the　number　of　flange　high-strength　bolts　can　improve　the　ductility　performance　and　plastic　rotation　capacity　of　joints.　The　oversized　bolt　holes　are　used　instead　of　standard　bolt　holes　and　the　triangular　vertical　stiffeners　are　used　instead　of　internal　diaphragms　which　have　little　impact　on　the　energy　dissipation　capacity　and　carrying　capacity　of　the　joint.　©　2017,　Engineering　Mechanics　Press.　All　right　reserved.