In　order　to　know　the　seismic　behavior,　three　1/5　scale　specimens　with　the　same　shear　span　ratio　1.5　but　different　ratio　of　height　to　sectional　thickness　of　the　steel-plate　shear　wall,　which　were　230,　115　and　77　respectively,　were　tested　under　cyclic　loading.　Based　on　the　experiment,　the　carrying　capacity,　stiffness,　hysteresis　characteristics,　ductility,　energy　dissipation　and　damage　characteristics　of　the　specimens　were　analyzed.　The　mechanical　model　for　calculating　load-carrying　capacity　of　the　new　style　shear　walls　was　proposed.　And　the　calculating　results　agreed　well　with　those　from　the　experiments.　It　shows　that　the　thinner　steel-plate　shear　wall　with　higher　ratio　of　height　to　sectional　thickness　has　lower　capacity,　lower　stiffness　and　better　ductility,　and　vice　versa.　The　load　capacity　and　stiffness　of　the　wall　with　moderate　ratio　of　height　to　sectional　thickness　are　in　between　of　the　thinner　and　the　thicker　walls.　But　the　overall　ability　of　its　seismic　energy　dissipation　is　the　best.　It　is　suggested　that　the　stronger　concrete　filled　steel　tube　columns　and　weaker　steel　plate　should　be　used　in　steel-plate　shear　walls　in　order　to　provide　two　earthquake　fortification　lines.