Classification and Typing Standard of Orthopedic Diseases is a necessary reference book for clinical and scientific researchers engaged in orthopedics in China in diagnosis, selection of treatment methods, summing up experience and writing papers. This book systematically introduces the classification and typing standards of trauma, spinal surgery, joint surgery, hand surgery, microsurgery, bone tumor, pediatric orthopedics and common bone diseases. Its characteristic is that most of the classification and classification are accompanied by corresponding photos or illustrations, and both pictures and texts are equally important, which is beneficial for readers to better understand, master and apply the required classification and classification standards. In addition, various classification and typing standards are briefly commented and explained, and their application scope is analyzed. At the same time, when there are multiple classification criteria for a disease or a certain part, the first choice and the second choice are put forward.