The international society for the study of vascular anomalies (ISSVA) new classification of vascular tumors and vascular malformations has been widely used in clinical practice for more than ten years and has been recognized as a more ideal classification method, providing greater clinical and scientific assistance. With the depth of research, what many patients call “hemangioma” is actually not a single disease, but a sum of a large group of vascular diseases including vascular tumors and vascular malformations, and the treatment of different kinds of vascular tumors and vascular malformations also has a lot of differences, so it is clear what kind of vascular disease the patient is Therefore, it is important to know which type of vascular disease the patient is suffering from for its treatment and prognosis. A brief description of the specific classification of hemangiomas and vascular malformations is given.