This　research　investigated　the　axial　compression　performance　of　recycled　aggregate　concrete-filled　circular　steel　tubular　columns　(CRACFST).　The　axial　compression　test　was　conducted　with　20　test　specimens　of　CRACFST.　The　effects　of　core　concrete　strength,　aggregate　particle　size　and　recycled　aggregate　replacement　rate　on　axial　compression　performance　of　the　test　specimen　were　studied　in　this　research.　This　investigation　analyzed　the　failure　mode,　ultimate　axial　compression　bearing　capacity,　compression　toughness,　initial　stiffness　and　ductility　of　CRACFST　under　axial　compression　tests.　The　ultimate　axial　compression　bearing　capacity　was　increased　with　the　increase　of　core　concrete　strength　and　decreased　with　the　increase　of　recycled　aggregate　replacement　rate.　In　addition,　the　ultimate　axial　compression　bearing　capacity　of　CRACFST　test　specimen　under　axial　compression　was　a　little　decreased　with　aggregate　particle　size　increased.　According　to　axial　compression　test　results,　nominal　compression　strength　of　core　concrete　of　30　MPa　and　a　recycled　aggregate　replacement　rate　of　not　over　50　%　were　suggested　for　CRACFST.　The　results　indicated　that　it　is　feasible　to　replace　ordinary　aggregate　concrete　with　recycled　aggregate　concrete.　Additionally,　the　numerical　simulation　method　was　used　to　analyze　axial　compression　behavior　of　CRACFST　specimen.　The　effects　of　steel　tube　thickness　and　column　height　on　axial　behavior　of　CRACFST　were　conducted　according　to　the　numerical　mode.　According　to　test　and　numerical　simulation　results,　a　calculation　formula　for　ultimate　axial　compression　bearing　capacity　of　CRACFST　was　provided　in　this　investigation.　A　good　agreement　with　the　test　and　numerical　simulation　results　was　achieved.