The　dynamic　tests　of　nine　CFRP-reinforced　square　concrete-filled　steel　tubular　(CFST)　beam-columns　with　Carbon　fibre　reinforced　polymer　(CFRP)　were　carried　out.　The　main　parameters　include　the　CFRP-reinforced　method　and　the　axial　load　level.　The　material　model　of　CFRP　and　the　modelling　method　of　CFRP　rupture　used　in　ABAQUS　were　then　proposed.　The　finite　element　model　(FEM)　for　bidirectional　CFRP-reinforced　square　CFST　beam-columns　was　developed.　Test　results　indicate　that　hysteretic　curves　of　beam-columns　are　good.　With　the　increasing　of　the　axial　load　level,　the　ductility　and　the　shear　capacity　decrease.　The　longitudinal　CFRP　can　effectively　improve　the　shear　capacity,　the　reinforced　effect　however　decreases　with　the　increasing　of　axial　load　level.　The　lateral　CFRP　can　significantly　enhance　energy　dissipation　capacity.　Meanwhile,　the　lateral　CFRP　can　be　used　to　ensure　the　good　adhesive　performance　between　the　steel　tube　and　the　longitudinal　CFRP.　Finally,　for　the　utilization　of　this　new　composite　specimen,　the　simplified　hysteretic　model　of　lateral　force　versus　displacement　was　provided.　The　predicted　results　agree　well　with　tested　ones.　©,　2014,　Chang＇an　Daxue　Xuebao　(Ziran　Kexue　Ban)/Journal　of　Chang＇an　University　(Natural　Science　Edition).　All　right　reserved.