The　strain　of　connecting　reinforcement　versus　shear　load　relationship　was　analyzed,　based　on　an　experimental　study　of　double-superimposed　shear　wall　horizontal　connections　subjected　to　reversed　cyclic　shear　deformations　combined　with　vertical　loads.　The　results　showed　that　the　variation　of　connecting　reinforcement　strain　in　double-superimposed　shear　wall　horizontal　connections　were　identical　with　that　in　cast-in-place　horizontal　connections.　Besides,　the　shear　mechanism　of　double-superimposed　shear　wall　horizontal　connections　was　analyzed　based　on　the　shear-friction　theory.　Mothreover,the　ultimate　shear　capacity　of　the　double-superimposed　shear　wall　horizontal　connections　was　determined　by　the　bond　force　at　the　interface,　the　interface　friction,　and　the　dowel　action　of　shear　connecting　reinforcement.　Furthermore　the　proposed　calculation　formula　for　shear　bearing　capacity　of　the　double-superimposed　shear　wall　horizontal　connection　was　derived　based　on　the　shear-friction　theory.　©　2020,　Editorial　Department　of　Journal　of　Tongji　University.　All　right　reserved.