The　horizontal　joint　of　double-superimposed　shear　wall　is　the　important　part　affecting　the　seismic　performance　of　the　wall.　The　horizontal　joint　mainly　relies　on　the　synergistic　action　between　the　vertical　connecting　rebar　and　the　cast-in-place　concrete　to　transfer　the　horizontal　and　vertical　loadings　and　coordinate　the　deformation.　Therefore,　it　is　necessary　to　study　the　bond-slip　behavior　between　the　vertical　connecting　rebar　and　the　cast-in-place　concrete.　In　this　paper,　the　effects　of　the　cast-in-place　layer　thickness,　the　concrete　strength,　the　anchorage　length,　and　the　diameter　of　rebar　on　the　interface　bond　properties　of　vertical　connecting　rebar　were　analyzed　through　pullout　tests.　Based　on　the　experimental　results,　the　calculation　formulas　for　bond　strength　and　peak　slip　were　proposed.　According　to　the　distribution　of　bond　stress　along　the　anchorage　length,　the　bond-slip　constitutive　model　optimized　by　the　bond　position　function　was　established　to　describe　the　bond-slip　behavior　between　the　vertical　connecting　rebar　and　the　castin-place　concrete.