Welding method for longitudinal beam of mini-truck

The invention discloses a welding method for a longitudinal beam of a mini-truck. The welding method comprises the step of fixing the longitudinal beam and connecting parts of the longitudinal beam to a plurality of sets of chucks of a welding fixture, and is characterized by further comprising the following steps of rotating a mounting plate in which the multiple sets of chucks of the welding fixture are fixedly mounted before welding, enabling the mounting plate to be overall perpendicular to the ground and limited, and then conducting welding work. The welding method for the longitudinal beam of the mini-truck can lower the welding difficulty of the longitudinal beam of the mini-truck and improve the welding efficiency.