Axial　tensile　stress-strain　curve　of　recycled　coarse　aggregate　concrete(RCAC)　was　tested　on　MTS　fatigue　test　machine.　Influence　of　replacement　ratio　of　recycled　coarse　aggregate(RCA)　and　curing　age　on　axial　tensile　stress-strain　curves　of　RCAC　were　analyzed,　and　tensile　constitutive　model　of　RCAC　was　proposed.　The　results　show　that　the　slope　of　RCAC　tensile　stress-strain　curve　on　the　ascending　stage　is　lower　than　that　of　ordinary　concrete,　and　after　peak　stress　the　curve　droppes　steeper　with　the　increase　of　the　replacement　ratio　of　RCA　and　curing　age.　Elastic　modulus　of　RCAC　is　in　linear　growth　with　the　curing　age　increasing,　and　when　the　load　exceeds　50%　the　deformation　modulus　of　RCAC　drop　further　than　ordinary　concrete.　At　the　early　age,　tensile　strain　at　peak　stress　of　RCAC　increases　with　the　increase　of　RCA　replacement　ratio,　the　tensile　strength　growth　rate　of　RCAC　is　faster　than　that　of　ordinary　concrete.　The　tensile-compression　strength　ratio　of　RCAC　reduces　with　the　curing　age.　©　2018,　Editorial　Department　of　Journal　of　Building　Materials.　All　right　reserved.