The welding process level determines the welding efficiency and welding quality,to improve the process level includes:man,machine,material,method,measurement,environment,that is,5M1E control and continuous optimization.For the manufacture of foreign high-end brands of car companies,the layout of the plant,beat control,5M1E management and control,as the production technology to solve the task of the first,according to the production capacity of the car companies to adjust the process in real time,quality and quantity to complete the task,and continue to reduce costs and improve quality.