This　paper　carries　out　a　numerical　study　on　the　seismic　performance　of　innovative　concrete　filled　steel　tube　(CFST)　column　base　with　high　strength　reinforcing　bars.　Based　on　the　experiments　of　the　proposed　CFST　column　base,　the　FEM　analysis　model　is　developed　using　the　ABAQUS　software.　In　the　analysis　model,　the　corresponding　material　constitutive　relationships,　the　meshing　method,　the　interaction,　and　the　boundary　condition　are　determined　for　the　innovative　CFST　column　bases.　Analysis　results　are　in　good　agreement　with　the　test　results.　The　tensile　and　compressive　region　of　the　steel　tube　and　the　base　plate　are　all　yielded.　The　base　plate　is　in　a　bending　status　and　an　interspace　appears　from　the　foundation　which　matches　the　test　phenomenon　well.　In　the　design　practice,　the　parameter　matching　needs　to　be　considered　the　proposed　column　base.　©　2021　IEEE.