The　curved　girder　bridges　are　used　widely　in　city　viaducts,　interchanges　and　high-grade　highway　in　China　and　abroad　for　its　structural　advantages　and　good　adaptabilities.　However,　severe　damages　even　collapses　of　curved　girder　bridges　were　occurred　during　the　past　damage　earthquakes　repeatedly.　It　implies　that　seismic　design　of　curved　girder　bridges　has　not　been　solved　perfectly.　In　this　paper,　the　datum　finite　element　model　of　a　typical　three-span　continuous　highway　concrete　curved　girder　bridge　is　established.　The　parameter　analysis　method　is　employed　to　study　the　effects　on　the　seismic　response　caused　by　the　variation　of　main　design　parameters,　such　as　curvature　radius,　aspect　ratio,　ratio　of　span　and　stiffness　of　pier,　etc.　The　simplified　analysis　condition　of　seismic　response　for　multi-span　continuous　concrete　curved　bridges　is　given,　and　the　simplified　calculation　method　for　irregular　bridges　is　proposed.　©　2012　American　Scientific　Publishers.