Abstract: Laser-arc hybrid welding, integrating the advantages of laser welding process and arc welding, is a new, high-quality welding technology which can be widely used in industry. Firstly, the characteristics of laser-arc hybrid welding, and laser-arc interaction were introduced. Secondly, the research progress of the general laser-arc hybrid welding technologies was reviewed. Finally, the applications of laser-arc hybrid welding technologies in automotive body manufacture were described.