Abstract: Stud welding technology, as a special welding process method for welding studs or columnar metals to the metal surface, has a wide range of applications in the manufacturing process of automobiles. In some luxury cars, the number of studs welded by stud welding is as high as three. Four hundred. This paper studies the stud welding gun produced by IVOSTUD Company, and conducts a series of research analysis and analysis on a series of problems arising from the use of this equipment for stud welding in the body production process of Beijing Benz Automotive. The simulation test has put forward effective solutions to many problems encountered in the actual production process, and implemented it on site. After a period of verification, it has been proved to be effective. This paper is a summary and refinement of the above simulation test process and research and analysis conclusions. On the one hand, it is to share experience and technical exchanges with other peers who use this stud welding gun. On the other hand, the problem solving analysis strategy and The test method of test verification is also worthy of reference and exchange and discussion with other technical engineers related to production and manufacturing.