In　order　to　achieve　the　fire　resistance　performance　of　recycled　concrete,　four　concrete　tubular　structure　specimens　were　designed　and　tested　under　the　high　temperature.　One　of　the　specimens　was　made　from　normal　concrete　C20,　one　was　made　from　recycled　coarse　aggregate　concrete　C20,　and　two　were　made　from　recycled　coarse　and　fine　aggregate　concrete　C20　and　C40　respectively.　The　temperature　field,　the　vertical　displacement,　the　wall　deflection　and　the　fire　endurance　were　comparatively　analyzed.　Results　show　that　the　rate　of　temperature　increasing　inside　the　concrete　becomes　smaller　with　the　increase　of　recycled　aggregate　replacement　rate.　The　temperature　of　specimens　with　recycled　concrete　is　lower　than　that　with　normal　concrete　at　the　same　position,　the　same　force　condition　and　the　same　fire　condition.　The　load　carrying　capacity　of　specimens　with　recycled　concrete　is　lower　than　that　of　the　normal　concrete　specimen　due　to　the　bigger　porosity　of　recycled　concrete.　The　fire　endurance　decreases　with　the　increase　of　recycled　aggregate　replacement　rate　in　the　specimens.　With　the　increase　of　the　strength　of　recycled　concrete,　fire　resistance　and　fire　endurance　of　the　tubular　structure　decrease　and　the　structure　tends　to　fail　in　expansion　under　high　temperature.