In　order　to　study　the　fire　resistant　performance　of　recycled　concrete,　three　concrete　tubular　structure　specimens　were　designed　and　tested　under　high　temperature.　One　of　the　specimens　was　made　from　normal　concrete,　one　from　half　recycled　concrete　with　recycled　coarse　aggregate　and　natural　fine　aggregate,　and　one　from　full　recycled　concrete　with　recycled　coarse　and　recycled　fine　aggregate.　The　temperature　field,　vertical　displacement,　wall　deflection　and　fire　endurance　were　comparatively　analyzed.　The　concrete　temperature　field　of　the　specimens　was　simulated　by　ABAQUS　software　and　the　FEM　results　agreed　well　with　the　experimental　results.　Results　show　that　the　rate　of　temperature　increasing　inside　the　concrete　becomes　slower　with　the　increase　of　recycled　aggregate　replacement　rate.　At　the　same　position,　the　temperature　of　specimens　with　recycled　concrete　is　lower　than　that　with　normal　concrete　at　the　same　loading　condition　and　same　fire　condition.　However,　the　load　carrying　capacity　of　specimens　with　recycled　concrete　is　lower　than　that　of　the　normal　concrete　specimen　due　to　the　larger　porosity　of　recycled　concrete.　The　fire　endurance　decreases　with　the　increase　of　recycled　aggregate　replacement　rate　in　the　specimens.