The book "Changquan", as a member of the Olympic Encyclopedia Knowledge Series, introduces the Changquan event in traditional Chinese martial arts in detail. Changquan is famous for its characteristics of being generous, fast and powerful, quick and quiet, and is one of the important schools of Chinese martial arts. This book starts from the historical origin of Changquan and explains its status and influence in the development history of Chinese martial arts. Then, through the use of pictures and texts, the basic movements, routine structure and martial arts principles of Changquan are analyzed in detail, so that readers can intuitively understand and learn Changquan. In addition, the book also introduces the inheritance and development of Changquan in modern society and its important role in international martial arts exchanges. By reading this book, readers can not only appreciate the charm of Changquan, but also gain an in-depth understanding of the breadth and depth of traditional Chinese culture. The book "Changquan" is a valuable resource for understanding and learning traditional Chinese martial arts, and is also a window for Olympic sports enthusiasts to understand Chinese martial arts culture.