In　order　to　study　the　axial　compress　capacity　of　recycled　aggregate　concrete-filled　steel　tube　short-columns,　22　specimens　were　designed　to　test,　and　the　recycled　coarse　aggregate　replacement　percentage　and　confinement　index　were　regarded　as　major　variable　parameters.　By　the　experiment,　the　whole　mechanical　process　and　failure　mode　of　all　specimens　were　observed,　and　stress-strain　curves　of　the　specimens　were　obtained.　The　influence　of　the　aggregate　replacement　rate　and　confinement　index　on　the　bearing　behaviour　of　the　specimens　was　analyzed.　The　test　results　indicate　that　the　failure　mode　of　the　columns　is　similar　to　that　of　an　ordinary　concrete-filled　steel　tube,　and　recycled　coarse　aggregate　replacement　rate　has　little　effect　on　a　recycled　aggregate　concrete-filled　steel　tube,　but　confinement　index　has　a　significant　effect　on　the　bearing　behaviour　and　deformation　performance.　The　bearing　capacity　of　the　specimens　was　calculated　and　analyzed　according　to　the　theories　of　Unified　Strengthen,　Confinement　and　Superposition　Calculation.　Compared　with　the　experimental　values,　the　results　show　that　calculated　values　are　low　on　the　basis　of　the　first　and　the　third　calculation　theories,　but　the　calculated　values　are　slightly　high　based　on　the　second　calculation　theory.　Finally,　stress-strain　curves　were　fitted　and　analyzed　according　to　experimental　data.　Stress-strain　whole　curve　equations　of　specimens　were　put　forward.　The　research　conclusions　could　be　a　reference　for　the　scientific　study　and　engineering　application　of　recycled　aggregate　concrete-filled　steel　tubes.