Blepharoptosis is one of the most common diseases in oculoplastics. Due to the particularity of children in the stage of growth and development, non-standard diagnosis and treatment not only affect the appearance,but also lead to the retardation of visual function development. Currently, there are no uniform standards and consensus on the choice of surgical timing and methods for pediatric congenital blepharoptosis. Here through refined classification of congenital blepharoptosis, we try to elucidate the choice of surgical timing for congenital blepharoptosis patients combined with amblyopia caused by a variety of reasons. By comparing different surgical methods, we analyze their mechanisms and advantages, and illustrate the surgical indication for severe congenital blepharoptosis, so as to standardize the choice of surgical timing and methods for pediatric congenital ptosis,improve the surgical success rate, and reduce the occurrence of amblyopia.