Infantile hemangioma （IH） is the most common benign tumor of infancy. Although it is self-limiting, its cosmetic problems and complications still has been the psychological concerns of the patients and parents. Pulsed dye laser （PDL） is the criterion standard for treating vascular lesions. It is controversial in treating IH, despite the 20 years＇ application. In this article, the current knowledge of the PDL treatment of IH was reviewed comprehensively and the new implications and directions for management of IH in the future were provided.