In　order　to　solve　the　problems　of　corrosion　and　premature　buckling　of　the　exterior　steel　plate　of　the　double-steel　composite　structural　wall　(DSCW),　this　paper　proposed　an　innovative　assembled　composite　structural　wall　(ACW).　The　concrete　layers　are　innovatively　utilized　in　ACW　as　protection　layers　to　prevent　steel　plates　from　corrosion　and　early　buckling.　Six　ACW　specimens　and　a　reinforced　concrete　(RC)　structural　wall　were　tested　under　cyclic　load,　and　the　seismic　performance　was　evaluated.　The　results　showed　that:　i)　the　displacement　capacity　decreased　and　the　strength　degraded　rapidly　as　the　stud　spacing　increased;　ii)　an　increase　in　rein-forcement　ratio　mitigated　the　concrete　crushing　at　the　wall　toe　and　the　steel　plates　buckling;　and　iii)　two　exterior　concrete　layers　effectively　delayed　the　yielding　of　steel　plates,　improving　the　ductility　and　flexural　strength　of　ACWs,　but　one　exterior　concrete　layer　caused　the　out-of-plane　torsion　failure.　In　addition,　ACW　was　better　in　terms　of　ductility,　load　capacity,　and　energy　dissipation　capacity　compared　to　traditional　RC　structural　walls.　Finally,　three　different　codes　were　evaluated,　and　the　calculated　results　of　AISC　360-22　were　conservative　compared　with　the　experimental　results.