The invention discloses a manufacturing process of a lock nut panel for a vehicle door. The lock nut panel is a baseplate provided with two lug bosses, each lug boss is provided with a screw hole, and the baseplate is provided with a hem and two square holes; and the lock catch nut panel for a front door uses Type 45 steel. The manufacturing process comprises the following steps: feeding sheet materials, stretching 1, stretching 2, stretching 3, stretching 4, stretching 5, molding, punching, shaping, ripping edges, punching the square holes, folding the hem, grinding the platform, tapping thread, quenching, tempering in low temperature and black oxide coating. By adopting the structure, the invention ensures the quality of components and the security of the whole vehicle, avoids the problem of high scrap rate of components due to instable quality, and effectively saves the cost.