Abstract: Introduced in detail the over-crossing construction engineering of Dongying-Linyi Oil Transport Pipeline. In the construction, floating bridge was used for pipeline prefabrication and assembling, pipeline bridge installation; tower frame and load bearing cable were used to lift the integrate over-river pipeline directly, which made an successful primary lifting. The method brought forth a new idea in river crossing construction. As the major works were done on floating bridge, aerial workload had been reduced greatly, therefore, unsafe factors were avoided, meanwhile, reduced construction term and cost.