In recent years, many new products have emerged in the fields of machinery and electronics, necessitating innovative designs. Correspondingly, the mechanism designs of mechanical equipment are facing greater challenges. The mechanical mechanism is a crucial component of machines. An ideal mechanism design plays a pivotal role in the development of new products. The authors have summarized their years of technical experience to select a hundred design cases, in compiling this volume. It aims to assist technicians engaged in mechanism design and innovation in developing their own unique design concepts and becoming more proficient in the innovative design of mechanisms. The cases presented in this book are all drawn from practical production experiences, and each case study clearly outlines the details of the mechanism in question. While they may not be optimally designed, all achieve their intended functions.