This book provides a comprehensive overview of the current research status and open problems in the field of structural synthesis, based on which a systematic methodology for the structural analysis of planar kinematic chains, structural synthesis of planar kinematic chains, and creative design of mechanisms is presented. The method presented in this book not only promotes the development of theoretical research in the field of mechanical science, and the development of industrial software for the creative design of mechanisms, but also generates novel high-performance mechanisms suitable for industrial application, which can improve the work efficiency and economic benefits. This book offers theoretical guidance for students and researchers engaged in the field of mechanical engineering, especially the creative design of mechanism.