The invention discloses a feeding system with a welding ring semicircular tube, and belongs to the field of material automatic and accurate feeding. The feeding system with the welding ring semicircular tube comprises a vibration conveying mechanism, a material separating and separating mechanism, a jacking material taking mechanism and a shaping and correcting mechanism; and the vibration conveying mechanism can be used for screening welding ring semi-circular pipes with missing welding rings, and the shaping and correcting mechanism can be used for adjusting the height of the welding rings.According to the feeding system, the high-efficiency screening of the semi-circular tube with the welding ring and the precise regulation and control of the height of the welding ring are realized inthe production process of the tube-type heat exchanger, compared with a traditional manual production mode, the efficiency is higher, and the product quality is better.