In　order　to　study　the　seismic　response　characteristics　of　extradosed　cable-stayed　bridges　with　continuous　system　for　different　seismic　isolation　design　scheme.　A　parametric　study,　based　on　the　nonlinear　dynamic　time　history　analysis　method,　is　conducted　to　investigate　the　contribution　of　the　bearings　on　the　seismic　response　of　five　typologies　of　the　extradosed　cable-stayed　bridges.　The　analysis　results　showed　that　the　other　isolation　design　scheme　can　effectively　control　the　relative　displacement　of　the　beam　end,　which　compared　with　the　JQZ　scheme;　The　FZQZ　scheme　can　effectively　coordinate　the　force　between　the　piers　and　play　the　seismic　potential　of　the　pier,　which　can　be　applied　to　the　different　characteristics　of　the　ground　motions.　For　the　system,　is　a　more　ideal　antiseismic　design.