In　order　to　study　the　long-term　deformation　law　of　the　full-size　recycled　concrete　beam,six　recycled　reinforced　concrete　full-size　beams　were　designed　and　manufactured　in　this　experiment.The　test　beam　had　been　subjected　to　a　long-term　stable　loading　of　750　d.The　deflection　curve　of　the　beam　as　a　function　of　time　was　obtained　by　arranging　the　dial　gauge　in　the　third　and　the　mid　span.The　effect　of　different　aggregate　replaced　ratio　on　deflection　and　the　influence　on　creep　coefficient　were　analyzed.In　this　paper,the　initial　deflection　analysis　was　also　carried　out.The　difference　between　the　initial　deflection　calculation　of　China　and　that　of　the　United　States　was　compared.The　replacement　of　recycled　fine　aggregate　will　reduce　the　stiffness　of　recycled　concrete　beams　greatly　and　the　initial　deflection　is　too　large.Special　attention　should　be　paid　to　the　design.Through　the　nonlinear　fitting　analysis　of　the　deflection　and　creep　coefficient　of　the　recycled　reinforced　concrete　beam,the　experimental　results　show　that　the　calculated　values　are　in　good　agreement　with　the　calculated　values　and　can　be　used　as　reference　for　the　future　creep　calculation　of　recycled　reinforced　concrete　beams.　©　2018,　Editorial　Board　of　Journal　of　Huazhong　University　of　Science　and　Technology.　All　right　reserved.