Abstract: Incisional hernia is a type of iatrogenic disease, and its clinical treatment is com-plicated. In recent years, there have been new advances in the diagnosis, surgical methods, and materials science of incisional hernia. On the basis of the Guidelines for diagnosis and treatment of abdominal wall incisional hernia (2018 edition), more than 70 experts and scholars over the country have discussed the consultation and modified the issues such as complex abdominal wall conditions, loss of domain, principles of incisional hernia treatment, techniques of abdominal wall hernia defects closure, perioperative management, and follow-up in this new edition, combined with evidence-based medical evaluation standards. The relevant medical institutions and peers in China are requested to carry out the actual clinical reference.