激光-电弧复合焊接是近几年在国际上得到迅速发展和应用的焊接前沿新技术，是材料优质高效连接的最佳熔焊工艺。激光-电弧复合焊接结合了激光焊和电弧焊两种工艺，影响焊接过程的参量较多，而这些因素的设置对焊接过程的稳定性、焊接接头的质量都有重要影响。从激光器类型的选择、辅助电源类型的选择、焊接方向、激光离焦量、激光-电弧之间距离、激光与电弧能量的匹配以及保护气体等方面讨论了激光-电弧复合焊接过程中的工艺参量的优化设置问题，并对这些因素对焊缝成形的影响进行了分析，最后提出了激光-电弧复合焊接工艺的研究方向。

Laser-arc hybrid welding, as an innovative fusion welding technology, has attracted tremendous attention recently and has already been investigated for applications in many fields. However, laser-arc hybrid welding, as the combination of laser welding and arc welding process, involves a large number of parameters. These parameters and identified settings have important influence on the welding stability and weld quality. The effects of process parameters such as laser types assistant power supply, welding direction, focal point position, laser-arc distance, ratio of laser to arc power, shielding gas on the weld shape were reviewed. The future work should be made in this area was presented at last.