In　this　work,　the　axial　local　compression　of　circular　reinforced　concrete-filled　steel　tube　(CRCFT)　stub　columns　is　studied.　Sixteen　specimens,　including　one　circular　reinforced　concrete　stub　column　(CRCC)　specimen　and　fifteen　CRCFT　specimens,　were　prepared,　considering　different　variables,　such　as　the　local　compression　area　ratio　beta,　sectional　steel　ratio　alpha,　volume　stirrup　ratio　rho　v,　longitudinal　reinforcement　ratio　rho,　and　concrete　strength　fc.　The　axial　local　compression　of　specimens　were　experimentally　investigated　in　terms　of　the　damage　process,　failure　mode,　load-displacement　relationship,　ultimate　bearing　capacity,　stiffness,　deformation　capacity,　and　strain　characteristic.　The　finite　element　model　of　the　CRCFT　was　also　developed　and　validated.　The　parametric　analysis　of　the　local　compression　area　ratio　beta,　sectional　steel　ratio　alpha,　and　volume　stirrup　ratio　rho　v　facilitated　the　further　investigation　of　the　axial　local　compression　behavior　of　CRCFT.　The　results　showed　steel　tube　buckling　and　concrete　shear　failure　exhibited　by　CRCFT　specimens.　With　the　increasing　local　compression　area　ratio　beta,　the　ultimate　bearing　capacity　reduced　by　3.6-47.9　%,　whereas　the　local　compression　strength　improvement　coefficient　beta　cl　increased　by　11.8-273.9　%.　With　the　increase　in　section　steel　ratio　alpha　and　volume　stirrup　ratio　rho　v,　the　ultimate　bearing　capacity,　stiffness,　and　deformation　capacity　were　improved.　Longitudinal　reinforcement　ratio　rho　and　the　concrete　strength　fc　also　influenced　the　stiffness　of　CRCFT　specimens.　A　simplified　calculation　method　for　the　ultimate　bearing　capacity　of　CRCFT　specimens　was　also　presented.