Green　chain　block　is　a　new　type　of　wall　material　which　has　tenon　and　mortise　structure　and　is　mainly　made　of　metal　tailings　and　construction　waste　residue.　To　study　the　seismic　behavior　of　small　shear　span　ratio　green　chain　block　masonry　shear　walls　such　as　failure　mode,　hysteretic　characteristics,　deformation　capacity　and　load-carrying　capacity,　quasi-static　tests　on　four　wall　specimens　with　shear　span　ratio　of　0.89　were　carried　out.　The　main　parameter　of　specimens　was　the　grouted　hole　ratio.　Most　of　the　grouted　holes　were　reinforced　with　rebars.　Test　results　indicate　that　the　failure　mode　of　wall　specimens　is　in　shear　along　stepped　section.　With　increasing　of　the　grouted　hole　ratio,　the　damage　extent　is　decreased,　and　the　shear　strength　and　the　nominal　yield　stiffness　are　both　increased.　The　ultimate　displacement　ratio　(average　of　positive　and　negative　values)　varies　within　1/134-1/119.　The　measured　shear　strength　of　the　wall　specimens　are　1.4-2.24　times　of　the　calculated　values　of　GB　50003-2011　＇Code　for　design　of　masonry　structures＇.　It　is　recommended　that　the　shear　strength　of　green　block　masonry　shear　walls　can　be　calculated　by　the　current　code　formulas.　©　2018,　Editorial　Office　of　Journal　of　Building　Structures.　All　right　reserved.