The invention relates to a laser-TOPTIG hybrid welding method. The laser-TOPTIG hybrid welding method includes the following steps: firstly, polishing or cleaning the surface of a workpiece to be welded, and installing a clamp; secondly, setting geometrical parameters; thirdly, setting welding parameters of laser-TOPTIG hybrid welding; fourthly, turning on a control switch, leading in shielding gas, then igniting an electric arc, emitting lasers after 1.0 s to 2.0 s, feeding a welding wire to the area at the highest temperature under mutual effects of laser beams and the electric arc, and then moving a laser device and a welding gun together to carry out laser-TIG electric arc welding. By means of the welding method, an operational program is simplified, efficiency is improved, the welding accuracy and the welding stability are guaranteed, and the welded joint quality is improved.