By analyzing the morphological characteristics of artificial ear, the curve planning and the machining method in auricular prosthesis forming were studied and a quick forming scheme of combining parallel mechanism and 3axis numerical control machine tool was put forward. Then, the mathematical model of forming curve was established. Through designing the structural parameters of Stewart parallel mechanism and inverse position analysis, the law of posture transformation of the parallel mechanism in the forming process was obtained. Finally, the virtual prototype technology was used to simulate the kinematics of the parallel mechanism, which verifies the feasibility and correctness of the forming scheme.