The　features　of　a　new　type　of　continuous　bridge　suspended　by　triangle　frame　are　introduced　in　this　paper.　In　view　of　the　segmental　cantilever　construction　method　engaged　in　main　girder　construction,　we　put　forward　to　the　method　of　pre-camber　setting　and　the　calculation　of　formwork　elevation　and　field　measurement　of　displacement.