The　analytical　and　experimental　modal　analyses　have　been　performed　on　the　Qingzhou　Cable-Stayed　Bridge　in　Fuzhou,　China.　An　analytical　modal　analysis　is　implemented　on　the　developed　three-dimensional　finite　element　model　starting　from　the　deformed　configuration.　The　field　ambient　vibration　tests　on　the　bridge　deck　were　conducted　just　prior　to　the　opening　of　the　bridge.　The　output-only　modal　parameter　identification　is　then　carried　out　to　extract　the　dynamic　characteristics　of　the　bridge.　A　good　correlation　is　achieved　between　the　finite　element　and　ambient　vibration　test　results.　It　is　demonstrated　that　the　ambient　vibration　tests　are　sufficient　to　identify　the　most　significant　modes　below　1.0　Hz　of　large　span　cable-　stayed　bridges.　The　validated　finite　element　model　can　serve　as　the　baseline　for　a　more　precise　dynamic　response　prediction　and　long-Term　health　monitoring　of　the　bridge.