In　order　to　research　the　problem　whether　the　deflection　limit　value　controls　CFST　arch　bridge　structural　vibration　or　not,　based　on　the　literature　review　of　the　deflection　limit　values,　three　different　type　CFST　arch　bridges　were　taken　as　examples　study　to　examine　the　vehicle　occupant　comfort　by　the　method　of　live-load　deflection　limit　values　and　vibration　parameter　limit　values.　Analytical　results　show　that　the　live-load　deflection　limit　values　can　not　control　the　vibration　of　bridges　under　the　effect　of　live-load　effectively.　In　the　design　of　CFST　arch　bridges,　vibration　parameter　control　method　is　more　reasonable　to　assure　pedestrian　and　vehicle　occupant　comfort　compared　with　live-load　deflection　limit　values　method.