Composite　shear　walls　and　core　walls　with　concrete　filled　steeltube　columns　are　new　types　of　members　of　structures　to　resist　horizontal　loads.　Aseismic　behaviors　of　composite　shear　walls　with　rectangular　concrete　filled　steeltube　columns　are　investigated,　considering　different　design　parameters　including　various　concrete　strength,　axial-load　ratio,　shear-span　ratio　and　strong　or　weak　shear　constructional　measures.　The　experiment　of　2　traditional　reinforced　concrete　shear　walls,　7　composite　shear　walls　with　rectangular　concrete　filled　steeltube　columns　and　2　joint　models　with　different　shear　constructional　measures　have　been　accomplished　by　applying　low　cyclic　loads.　Based　on　the　experiment,　the　load-carrying　capacity,　ductility,　stiffness　and　degradation,　hysteretic　property,　energy　dissipation　and　failure　phenomena　of　each　shear　wall　are　contrastively　analyzed.　The　formulas　of　load-carrying　capacity　are　established.　The　results　obtained　from　the　formulas　are　in　good　agreement　with　those　from　the　experiment.　The　results　show　that　this　kind　of　shear　walls　and　core　walls　can　fully　play　advantages　of　strong　lateral　stiffness　of　concrete　shear　walls　and　good　aseismic　behavior　of　concrete　filled　steeltube　columns.　Shear　constructional　measures　combining　concrete　filled　steeltube　columns　and　concrete　shear　wall　work　well.　This　kind　of　shear　wall　and　core　walls　are　well　applied　in　engineering.