The automatic welding production of the front wheel cover assemblies of the auto parts and the longitudinal beam assemblies of the rear floor is taken as examples to introduce the design ideas of the spot welding robot workstation in detail,including the technical requirements,composition and characteristics,and electrical control system, etc. The working principle of the safety system,welding fixture system and water & gas system are emphatically analyzed. The service condition of the spot welding robot workstation is also introduced briefly. Practice proves that the four spot welding robot workstations designed are easy to operate,and have good welding quality and high production efficiency,also can completely meet the requirements of automatic welding of the front wheel cover assemblies and rear floor longitudinal beam assemblies. The design concept of this spot welding robot workstation has certain reference for the design and application of robot workstation and automatic production line.