In　order　to　further　improve　the　seismic　performance　of　RC　shear　walls,　a　new　composite　shear　wall　with　concrete　filled　steel　tube　(CFT)　columns　and　concealed　steel　trusses　is　proposed.　This　new　shear　wall　is　a　double　composite　shear　wall;　the　first　composite　being　the　use　of　three　different　force　systems,　CFT,　steel　truss　and　shear　wall,　and　the　second　the　use　of　two　different　materials,　steel　and　concrete.　Three　1/5　scaled　experimental　specimens:　a　traditional　RC　shear　wall,　a　shear　wall　with　CFT　columns,　and　a　shear　wall　with　CFT　columns　and　concealed　steel　trusses,　were　tested　under　cyclic　loading　and　the　seismic　performance　indices　of　the　shear　walls　were　comparatively　analyzed.　Based　on　the　data　from　these　experiments,　a　thorough　elastic-plastic　finite　element　analysis　and　parametric　analysis　of　the　new　shear　walls　were　carried　out　using　ABAQUS　software.　The　finite　element　results　of　deformation,　stress　distribution,　and　the　evolution　of　cracks　in　each　phase　were　compared　with　the　experimental　results　and　showed　good　agreement.　A　mechanical　model　was　also　established　for　calculating　the　load-carrying　capacity　of　the　new　composite　shear　walls.　The　results　show　that　this　new　type　of　shear　wall　has　improved　seismic　performance　over　the　other　two　types　of　shear　walls　tested.