A　shear　wall　with　concrete　filled　steel　tube　(CFST)　columns　and　encased　steel　truss　is　a　new　type　of　shear　wall.　To　determine　the　seismic　performance　of　the　new　shear　wall,　an　experiment　was　carried　on　a　1/5-scale　model.　Based　on　the　experimental　study,　the　load-carrying　capacity,　stiffness,　ductility,　hysteretic　property,　energy　dissipation　and　failure　phenomena　of　the　model　were　analyzed.　It　shows　that　the　seismic　performance　of　a　shear　wall　with　CFST　columns　and　encased　steel　truss　has　high　bearing　capacity,　stiffness,　energy　dissipation　capacity　and　good　ductility.　In　addition,　a　numerical　elastic-plastic　finite　element　(FE)　analysis　of　a　shear　wall　with　CFST　columns　and　encased　steel　truss　were　carried　out.　The　computation　results　were　in　good　agreement　with　the　test　results.　FE　software,　ABAQUS,　was　used　to　change　the　ratio　of　steel　truss　to　steel　tubes　and　normalized　axial　force.　The　influences　of　different　parameters　of　shear　walls　were　carried　out.