Creep　of　core　concrete　in　concrete　filled　steel　tube　(CFST)　has　its　special　characteristics.　Research　results　about　creep　of　CFST　members　and　the　calculation　method　in　design　of　CFST　arch　bridge　show　that　creep　will　cause　obviously　increasing　of　deflection　of　arch　rib　and　stress　distribution　between　steel　tube　and　core　concrete.　Therefore,　creep　problem　should　be　taken　into　account　in　design　of　a　CFST　arch　bridge.　Compared　with　reinforced　concrete　arch　bridge,　initial　creep　value　in　a　CFST　arch　bridge　is　relatively　small　and　its　tested　value　is　small　than　the　estimated　one　by　the　design　code　method　for　the　reinforced　concrete　bridge.　However　the　creep　of　CFST　arch　will　increase　in　a　longer　time　than　that　of　the　reinforced　concrete　one,　so　it　will　give　out　an　under　estimated　results　if　only　the　initial　creep　is　considered　in　the　design.　In　future,　the　creep　calculation　model,　the　affection　of　the　stress　distribution　of　steel　tube　and　concrete　to　the　ultimate　load　carrying　capacity　of　arch　and　its　influence　to　rigidity　of　arch　rib　(to　deflection　and　stability)　should　need　further　studies.