In　order　to　investigate　flexural　performance　of　high　strength　recycled　concrete　beams,　the　flexural　performance　tests　on　simply-supported　beams　with　different　replacement　ratio　of　recycled　coarse　aggregate　were　performed.　4　specimens　were　designed　with　the　same　cross　section,　same　reinforcements　and　same　C55　recycled　concrete.　The　failure　characteristics,　load　bearing　capacity,　ductility　and　energy　dissipation　of　specimens　were　discussed.　Results　show　that　high　strength　recycled　concrete　beams　have　elastic,　cracking,　yield　and　ultimate　phases　just　like　high　strength　ordinary　concrete　beams.　The　average　strain　measured　on　cross-section　sastifies　the　plane　section　assumption.　Under　same　conditions,　the　cracking　and　ultimate　moments　of　high　strength　recycled　concrete　beam　are　lower　than　those　of　the　ordinary　beams,　but　not　much.　The　stiffness　of　the　high　strength　recycled　concrete　beams　reduces　a　little　bit,　however,　the　ductility　is　better.　Finally,　according　to　the　present　code　of　the　Design　of　Concrete　Structures,　the　ultimate　moments　of　high　strength　recycled　concrete　beams　are　calculated.