The car front fender is formed by five-step stamping processes normally, so it needs more molds and higher costs. Therefore, the optimization can be achieved by compressing the numbers of stamping processes. Through analyzing the product structure and its forming process, the order of the side punching process was adjusted, the side punching and trimming process were combined, and the side punching was carried out before shaping, so the numbers of stamping process for the car front fender were reduced from five-step to four-step process. However, it was easy to cause deformations on the aperture and the shape. For the above issue, the ultra difference of the hole was compensated by the reverse compensation method to meet the expected requirements. Through the actual production in factories, it is proved that the improved process has a strong feasibility, the number of dies reduces and the production cycle of dies is shortened, and the production efficiency is increased and the manufacturing costs are saved.