In　order　to　make　comparative　study　on　the　seismic　performance　of　RC　shear　wall　with　single　row　of　steel　bars　and　that　with　double　rows　of　steel　bars,　an　experiment　was　conducted,　in　which　the　low　cyclic　reversed　load　was　applied　to　a　3　stories　RC　shear　wall　structure　model　of　1/3　scale.　In　the　model,　bi-directional　steel　bars　of　double　rows　were　designed　at　one　side　while　those　of　single　row　at　another　side.　With　experimental　data,　bearing　capacity,　ductility,　stiffness　and　its　degradation,　hysteretic　behavior,　energy　dissipation　and　failure　phenomena　of　the　model　were　analyzed.　Comparing　shear　wall　with　single　row　of　steel　bars　with　that　with　double　rows　of　steel　bars,　it　is　found　that　the　former　is　superior　to　the　latter　with　respect　to　seismic　performance　in　plane,　because　single　row　of　steel　bars　can　prevent　crack　developing　effectively.　The　spacing　of　the　single　row　of　steel　bars　is　smaller　than　the　interval　between　double　rows　of　steel　bars,　although　they　have　same　steel　bars.　As　the　result　of　the　collaboration　of　web　and　flange,　out-plane　working　performance　of　shear　wall　with　bi-directional　single　row　of　steel　bars　is　applicable　for　multistory　building.