Experiments　on　six　different　I-section　composite　shear　walls　with　double　steel　plates　were　carried　out　under　cyclic　loading.　The　flanges　of　all　specimens　were　equal　thickness　double　plate　three-opening　rectangular　steel　tubular　walls.　Specimens　were　divided　into　two　groups　according　to　the　thickness　of　double　steel　plates:　each　group　combines　one　specimen　with　two　web　openings,　one　specimen　with　three　web　openings　and　one　bottom　strengthened　specimen　with　three　web　openings.　Each　specimen　adopts　the　scale　of　1/5　and　the　shear　span　ratio　of　1.5.　The　failure　characteristics,　load-bearing　capacity,　ductility,　energy　dissipation　capacity　and　stiffness　degradation　process　of　the　specimens　were　analyzed.　Test　results　show　that　the　flange　of　I-section　composite　shear　walls　with　double　steel　plates　forms　inclined　tension　strips　divided　by　the　opening　under　cyclic　loads.　The　flange　and　the　web　show　a　good　ductility　capacity　and　seismic　behavior.　The　steel　plate　thickness,　numbers　of　the　opening　and　the　bottom　strengthening　construction　measures　have　obvious　effects　on　the　seismic　behavior　of　the　wall.　Matching　the　strengths　of　the　flanges　and　the　web　by　designing　those　parameters　properly　and　adopting　the　effective　construction　measures　are　the　key　measures　to　make　sure　that　the　bending　and　shear　performance　of　the　shear　wall　can　be　reached　simultaneously,　as　well　as　the　ductility　yielding　mechanism.