The dual-car linkage AGV is mainly used for the transportation of super-long, super-size or super-heavy materials in the factory, and can meet the transfer of materials up to 26 meters in length and 40 tons in weight. CSG Robotics Company has the ability of dual-vehicle linkage AGV collaborative control. Researchers and developers have tested and improved autonomous collaborative algorithms to make the dual-vehicles have better collaboration capabilities. At the same time, the two vehicles were tested in a 5G environment, which provided a lot of practical basis for the collaborative algorithm. The two-vehicle linkage cooperation has various types, which can realize the coordination of any posture including front-rear coordination and left-right coordination. The two AGVs that form a dual-vehicle linkage have a single complete function and can be used independently without affecting the re-combination of cooperative functions. The AGV that forms the two-car linkage is generally laser navigation, which has excellent road adaptability and can also be applied to outdoor roads. The handling of large-scale components based on 5G technology in dual-vehicle linkage is applied to domestic large-scale aircraft manufacturing workshops, successfully realizing multi-AGV collaborative handling of large-scale workpieces.