The invention discloses an intelligent automatic production line for welding a compressor and a liquid reservoir. The intelligent automatic production line comprises an L-shaped connecting seat. A liquid reservoir baffle is arranged on one side of the upper surface of a horizontal plate of the L-shaped connecting seat; the lower end of one side of a vertical plate of the L-shaped connecting seat is connected with two second electric telescopic rods through bolts; and a liquid reservoir movable fixing plate is arranged between the telescopic ends of the second electric telescopic rods. The liquid reservoir movable fixing plate can be driven to move forwards and backwards through the second electric telescopic rods; the liquid reservoir can be fixed through the liquid reservoir movable fixing plate and the liquid reservoir baffle; and a welding head can be driven by a linear motor to move forwards and backwards, so that determining the position of the welding head is more convenient, andwelding can be conducted through a welder and the welding head. The intelligent automatic production line for welding the compressor and the liquid reservoir is simple in structure and easy and convenient to operate, not only is fixing more convenient, but also welding is more convenient, the production efficiency is improved, and convenience is provided for people.