Abstract: Laser beam welding is a new technique for food can making. The authors studied the welding technology and parameters for the tin-plate can and thier influence on welding speed and quality, investigated the microstructure and properties of the weld, analysed the distribution of tin in weld metal and carried out the flange test of the can body. The results show that laser welding of can body is characterized by high welding speed, fine appearance and good quality. It is a stable and reliable process. This technology can fulfill the requirement of can making.