Abstract: In this article, the actual state and the application have been specified, which includes the multiphase pipeline construction status quo at home and abroad, the flow roles of mixing transportation, the multiphase measuring technique, multiphase increasing-pressure technique, rich gas transportation technique and the solid resultant problem. At present, the general current of the multiphase transportation technique development is constructing the long-distance, large-diameter and high-pressure multiphase transportation pipeline, applying the advanced multiphase increasing-pressure and measuring equipments, applying the high automatic control to the systems and developing toward the deep water and deep deset.