The　dynamic　model　and　movement　differential　equations　of　the　system　were　established,　according　to　the　structural　specialty　of　grinding　wheel　carriage　in　vertical　glass　edge　grinding　machine.　Expressions　for　steady　vibration　amplitudes　and　dynamic　amplification　factors　(β1,　β2)　of　grinding　wheel　carriage　and　grinding　wheel　actuated　by　grinding　wheel　centrifugal　force　were　educed.　Vibration　behaviors　were　analysed.　The　results　indicate　that　β1　and　β2　are　related　with　the　mass　ratio　μ,　the　natural　frequency　ratio　α　of　grinding　wheel　to　grinding　wheel　carriage,　the　ratio　λ　of　grinding　wheel　angular　frequency　to　natural　frequency　and　damping　ratio　ξ.　The　grinding　wheel　and　grinding　wheel　carriage　will　have　a　small　and　equal　dynamic　amplification　factor　if　reasonably　selecting　μ,　α　and　ξ　values.　Vibration　amplitudes　of　grinding　wheel　carriage　and　grinding　wheel　will　be　reduced　greatly　when　ratio　λ　is　taken　between　0.9　to　1.1.　Research　results　not　only　overcome　shortcomings　of　existent　methods　in　which　the　grinding　wheel　shaft　is　considered　as　rigid　and　complex　equipments　are　necessary　to　do　the　test,　but　also　appear　clarity　in　physical　concept　and　simplification　in　computation.