The　dynamic　characteristics　of　half-through　concrete-filled　steel　tubular　(CFST)　arch　bridges　attract　broad　attention　due　to　its　serious　vibration　problems.　Statistical　analysis　of　main　design　parameters　and　structural　features　of　this　type　bridges　was　carried　out　based　on　design　information　of　158　half-through　CFST　arch　bridges　built　in　China,　then　two　reference　bridges　were　designed.　The　reference　finite　element　(FE)　models　for　half-through　CFST　arch　bridges　with　thrust　and　those　without　thrust　were　built　using　Midas　Civil　software,　then　the　dynamic　characteristics　of　the　two　models　were　compared.　A　comprehensive　parametric　analysis　for　the　dynamic　characteristics　of　half-through　CFST　arch　bridges　without　thrust　was　performed　considering　variation　of　rise-span　ratio,　aspect　ratio,　stiffness　of　arch-rib,　transverse　brace　style,　failure　modes　of　suspenders　and　restriction　conditions　of　supports.　The　results　showed　that　a　long-span　half-through　CFST　arch　bridge　has　features　of　dense　high-order　modes　and　obvious　coupled　vibration　between　arch　rib　and　deck;　for　half-through　CFST　arch　bridges　without　thrust,　the　main　design　parameters　within　the　range　of　commonly　used　values　have　little　influence　on　its　dynamic　characteristics;　reasonable　arrangement　of　transverse　bracing　and　increase　in　width　of　bridge　deck　can　significantly　improve　the　lateral　stability　of　structures.　©　2017,　Editorial　Office　of　Journal　of　Vibration　and　Shock.　All　right　reserved.