Abstract: The effects of laser-short-circuiting MIG arc hybrid welding, laser-CMT arc hybrid welding, laser-pulsed MIG arc hybrid welding process on weld appearance, the metal transfer stability of welding process, weld microstructure and joint performance were investigated. The results shown that the weld appearances obtained by laser-short-circuiting MIG arc hybrid welding are poor and do not meet the requirements. The laser-CMT arc hybrid welding and laser-pulsed MIG arc hybrid welding methods are easy to obtain continuous and stable weld appearances. The microstructures and tensile properties of welded joints of the middle of the weld, the fusion zone and heat affected zone are the same basically, the tensile strength and the elongation are not less than 90% and 50% above of that of the base metal, respectively.