Abstract: A large number of assembled special stud welding parts are needed in the production of a certain type of car body stud welding process. At present, it is mainly manually screened, loaded and assembled, so the assembly efficiency is low, the error rate is high, and the labor intensity is high. Therefore, a feeding manipulator for the automatic assembly system of stud welding parts is designed. Based on the structure of the assembly system and the optimal feeding path, the structure of the feeding manipulator is designed, and the three-dimensional model of the parts is built based on the virtual prototype technology. At the same time, ANSYS analysis software is used to carry out finite element analysis of the key bearing parts to obtain the static deformation results and strain conditions, and carry out modal analysis of the whole structure to obtain the natural frequencies and modal shapes of the first six orders. The simulation results show that the manipulator has good structural stability, strength and stiffness performance, and can be used in the stable feeding of stud welding parts, which lays a foundation for the development of subsequent engineering application prototype.