A laser marking and welding machine of jug bodies comprises the processing jug bodies, buckled lugs and a work table. At least two welding stations and at least one marking station are arranged on the work table, wherein the welding stations are used for welding the buckled lugs to the processing jug bodies respectively, the marking stations are used for printing marks on the surfaces of the processing jug bodies, and the marking stations are located above the welding stations. Vibration plates are arranged on the welding stations respectively, the buckled lugs are arranged on the vibration plates respectively, and the processing jug bodies are arranged on the welding stations respectively; the work table is further provided with a robot hanging rack, a robot is arranged on the robot hanging rack, a welding gun clamp is arranged on the robot, the robot moves on the welding stations backwards and forwards through the robot hanging rack, and each buckled lug is welded to the corresponding processing jug body through the welding gun clamp. The laser marking and welding machine has the advantages of being simple and reasonable in structure, excellent in performance, convenient to operate, low in manufacturing cost, easy to produce, easy to implement, fully automatic, intelligent, high in production efficiency, safe, reliable and the like, and the practicability is high.