Pipeline conveying system is used to convey pipelines from pipeline storage area to seabed via main operating line. It is important for smooth and orderly operation of pipeline laying ship. It includes transfer vehicle, longitudinal conveying system, lateral conveying system, line-up station, pipe track support & support roller unit, adjustable curvature stinger and other equipment. Operation mode is single node or double node; driving mode is electric drive or hydraulic drive. The range of pipe laying diameter is 4-60 inches, and maximum weight for single node pipe is 400 kN.