To　investigate　the　deformation　performance　of　high　strength　recycled　reinforced　concrete　beams　under　long-term　loading,　the　long-term　deflection　tests　of　six　recycled　reinforced　concrete　beams　were　carried　out.　The　beam　cross　section　was　200　mm×300　mm,　and　the　length　was　3　300　mm　and　the　span　was　3　000　mm.　The　reinforcement　details　of　specimens　were　the　same.　The　longitudinal　reinforcement　ratio　was　1.13%　and　the　stirrup　volumetric　ratio　was　0.54%.　The　concrete　cover　depth　of　longitudinal　reinforcement　was　20　mm.　The　strength　level　of　recycled　concrete　was　C55~C60.　The　concrete　was　recycled　coarse　aggregate　(RCA)　concrete,　and　the　fine　aggregate　was　natural　sand.　The　replacement　ratio　of　RCA　included　0%,　33%,　66%,　100%,　and　there　were　two　loading　levels.　The　test　has　already　continued　under　long-term　loading,　and　the　load　value,　deflection,　temperature　and　humidity　have　been　recorded.　The　developing　rule　of　beams＇　deflection　of　different　loading　levels　and　different　replacement　ratios　of　RCA　were　analyzed.　The　formula　between　deflection　and　time　was　obtained　by　fitting　curves.　Results　show　that:　the　creep　deflection　of　high　strength　recycled　reinforced　concrete　beams　is　slightly　larger　than　the　creep　deflection　of　natural　aggregate　concrete　beams　under　low　loading　level　(The　ratio　of　loading　moment　to　yield　moment　is　0.29).　The　deflection　increasing　coefficient　under　low　loading　level　is　slightly　higher　than　that　under　high　loading　level　(The　ratio　of　loading　moment　to　yield　moment　is　0.46　and　0.47).　The　deflection　increasing　coefficient　of　recycled　concrete　beams　could　adopt　1.1　times　of　the　deflection　increasing　coefficient　of　normal　concrete　beam.　The　calculated　values　of　deflection　obtained　by　curve　fitting　and　piecewise　linear　fitting　are　in　good　agreement　with　the　measured　values.　©　2017,　Editorial　Office　of　Journal　of　Building　Structures.　All　right　reserved.