This book includes 4 chapters and more than 100 pictures. In brief words, it describes the origin of seal in ancient China, the changes of seal system and art form in the past dynasties, the artistic style and schools of seal cutting and representative seal cutters after the Song and Yuan dynasties. The article takes the development process as the main line, as well as the appreciation and analysis of seal cutting art and the evolution of seal cutting techniques. This book seeks to give readers a bird 's-eye view of the Chinese art of seal cutting.