Abstract: This article takes a laser cleaning process for intermediate shaft components as the research object, analyzes key contents such as size changes of intermediate shaft components, hot installation torque displacement curve, weld surface quality, welding quality, static torsion experiment, etc., verifies the various process performance and processing quality of intermediate shaft components, and combines with the laser cleaning process control of intermediate shaft components to obtain a laser cleaning process test result for intermediate shaft components, The results indicate that laser cleaning processing does not affect the dimensions of the parts, and the dimensions before and after cleaning are consistent. The cleaning effect is good, and there is no significant fluctuation in torque during the hot fitting process. The maximum required pressure is 48.04KN, and the torque can be pressed into place within 50KN. At the same time, there were no cracks, holes or other defects on the surface of the welded joint of the intermediate shaft component cleaned by laser. The microstructure of the welded joint area was fine and evenly distributed, and no common welding defects were produced. Finally, the peak torque of the laser cleaned intermediate shaft component was 16.47KN. m, and the peak torsion angle was 23.6°. The static torsion test results showed that the shaft was broken, and there were no obvious cracks in the weld seam. The intermediate shaft component met the quality requirements for welded products. This study aims to better guide workshop production work and improve production efficiency.