The　concrete-filled　steel　tubular　(CFST)　arch　bridges　with　circular　tube　ribs　usually　adopt　the　sparsely　arranged　transverse　braces,　which　have　a　large　shear　deformation　in　the　out-of-plane　instability,　it　is　not　suitable　to　use　the　existing　calculation　method　based　on　the　assumption　that　shear　deformation　is　not　considered.　Taking　the　lattice　columns　with　sparsely　battened　plates　as　the　research　object,　the　calculation　formula　of　elastic　stability　bearing　capacity　of　lattice　columns　considering　the　shear　deformation　is　derived.　Based　on　the　calculation　formula　of　elastic　stability　bearing　capacity　of　lattice　column　and　by　employing　the　equivalent　beam-column　method,　the　calculation　formula　of　out-of-plane　elastic　stability　bearing　capacity　considering　shear　deformation　for　CFST　arch　bridge　with　circular　tube　ribs　is　proposed.　The　parameter　analysis　on　the　standard　CFST　arch　bridges　with　circular　tube　ribs　are　carried　out　by　finite　element(FE)　method,　the　results　are　compared　with　the　calculation　results　according　to　formulas　considering　and　without　considering　shear　deformations,　and　formulas　recommended　by　the　existing　codes　and　references.　The　results　of　research　show　that　in　the　scope　of　structure　dimensions　commonly　used　in　engineering,　the　results　obtained　by　recommended　formulas　in　existing　codes　and　references　are　one　order　of　magnitude　smaller　than　those　obtained　by　finite　element　method,　they　are　not　suitable　for　the　calculation　of　out-of-plane　elastic　stability　bearing　capacity　of　CFST　arch　bridge　with　circular　tube　ribs.　The　error　between　FE　analysis　and　proposed　calculation　formula　of　out-of-plane　elastic　stability　bearing　capacity　considering　shear　deformation　for　CFST　arch　bridge　is　within　15%,　which　has　a　large　precision　improvement　and　good　applicability.　©　2024　Editorial　Board　of　Jilin　University.　All　rights　reserved.