Abstract: The injection molding process of lightweight stabilizer bar links was designed and optimized on the basis of the feature of glassfiberreinforced polyamide as a raw material as well as the loadbearing characteristics required for the molding process. Furthermore, the gate location and number of injection molds were designed and the injection molding parameters were optimized. Combined with the results of finite element analysis, the molding qualities including fiber orientation, weld line and warpage obtained from the 3gate proposal were compared, and then a proper design proposal for the gate was determined to meet the requirements of injection molding process. Taking the warpage deformation as an optimization target, this design proposal of the gate was further optimized by an orthogonal method to obtain a set of optimized parameters for the injection molding process. A warpage value of 1.514 mm was achieved when the injection molding was performed under these optimized parameters. Finally, the molding process and the design of the mould should be adjusted to ensure good loadbearing performance for the stabilizer bar link.