The　corrosion　of　steel　strands　was　corroded　acceleratedly　by　electrochemical　method.　And　the　pull-out　specimens　composed　of　steel　strand　and　concrete,　with　different　corrosion　degrees　and　pull-out　modes,　were　prepared.　The　degradation　law　of　bonding　performance　between　corroded　steel　strands　and　concrete　under　chloride　corrosion　was　studied　by　pull-out　test.　The　effects　of　corrosion　degree,　stirrup　constraint　and　pull-out　mode　on　the　failure　mode　and　bond　strength　of　specimens　were　discussed.　The　results　show　that　the　pull-out　failure　mode　mainly　depended　on　stirrup　configuration　and　degree　of　corrosion.　With　the　increase　of　corrosion　degree,　the　bond　strength　of　steel　strand　and　concrete　decreased　linearly.　Using　stirrup　could　increase　the　bonding　strength　of　corroded　steel　strands　by　about　20%,　and　the　effect　of　pull-out　mode　on　bonding　strength　was　not　obvious.　©　2022,　Shanghai　Research　Institute　of　Materials.　All　rights　reserved.