In　order　to　study　the　seismic　behavior　of　reinforced　recycled　concrete　joints　under　chloride　environment,　eight　exterior　joints　with　different　replacement　rates　of　recycled　coarse　aggregate　(RCA)　and　reinforcement　corrosion　rates　were　designed,　and　seismic　analyses　were　carried　out　using　quasi-static　tests.　Corrosion　was　accelerated　by　the　electrochemistry　method　with　sponge　and　stainless　steel　wire　mesh　wrapping　around　the　specimens　under　wet/dry　(1:1)　condition,　and　corrosion　cracks　were　observed　when　reaching　expected　corrosion　rates.　The　results　indicate　that　the　load-carrying　capacity,　stiffness,　ductility　and　energy　dissipation　of　uncorroded　specimens　with　50%　and　70%　RCA　replacement　rates　are　inferior　to　those　of　the　normal　concrete　specimen,　while　the　behavior　of　the　specimens　with　100%　RCA　replacement　rate　is　similar　to　that　of　the　normal　concrete　specimen.　The　chloride　environment　can　be　well　simulated　by　electrochemistry　method　under　wet/dry　(1:1)　condition,　leading　to　red　rust　and　pitting　corrosion　on　the　reinforcing　bars.　For　the　specimens　with　100%　RCA　replacement　rate,　the　load-carrying　capacity　and　stiffness　decrease　significantly　when　the　corrosion　rate　exceeds　2.18%　(maximum　crack　width　is　1.20　mm),　while　their　ductility　and　energy　dissipation　are　superior　to　those　of　the　uncorroded　joint　when　the　corrosion　rate　is　less　than　4.17%　(maximum　crack　width　is　3.08　mm),　and　then　decrease　significantly.　©　2020,　Editorial　Office　of　Journal　of　Building　Structures.　All　right　reserved.