The typical special-shaped steering knuckle has a slender shaft diameter and a large difference in cross-sectional shape. Because of the negative draft angle, the horizontal forging method is mainly used, and the existing horizontal forging process is difficult to ensure the product quality and increases the difficulty of automatic production. Therefore, for the structural characteristics and forming difficulties of this special-shaped steering knuckle, the precision forging process of special-shaped steering knuckle consisting of four forging processes of upsetting, flattening, pre-forging and final forging was put forward, and the process was simulated. The simulation results show that the upsetting and flattening processes distribute the materials in advance, which provides the amount of material for subsequent forming of slender shaft part, thick disc part and fork-shaped part, and the pre-forging and final forging processes respectively complete the forging of the main part of forgings, as well as the fillet and partial filling of forgings, indicating that the process design is reasonable and the forgings are fully filled. In addition, according to the results of simulation analysis, combined with the forging process and the equipment characteristics of press, the type and tonnage of main press suitable for automatic forging production for this kind of steering knuckle were proposed.