The invention discloses a multifunctional automatic argon arc welding machine, and belongs to the technical field of welding machines. The multifunctional automatic argon arc welding machine includesa rack. A left Y-axis driver is fixedly arranged on the top left side of the rack through bolts, a right Y-axis driver is fixedly arranged on the top right side of the rack through the bolts, and thetops of the left Y-axis driver and the right Y-axis driver are slidably connected with a horizontal precise rotary table. According to the multifunctional automatic argon arc welding machine, design is reasonable, practicability is high, by adopting the Y-axis driver, an X-axis driver and a lifting mechanism, XYZ axis universal drive is realized, welding without dead angles is achieved, the multifunctional automatic argon arc welding machine aims at the instrument industry, the labor of an old skilled welder is replaced, labor costs and management costs are saved for a factory, a left and right alternate way is adopted to take and place materials, the efficiency of welding products is improved, the materials are placed on the left portion and taken on the right portion, and placed on the right portion and taken on the left portion, 24-hour uninterrupted work can be carried out, and the working efficiency is improved.