The lingual ligament is a longitudinal mucosal fold between the ventral part of the tongue and the floor of the mouth. Short tongue ligament is a common oral disorder in children and a common congenital malformation. The short tongue ligament affects the movement of the tip of the tongue and the anterior part of the tongue, resulting in abnormal language development in children. In severe cases, the tongue ligament attachment is too low, the tongue ligament is short and thick or a pressure ulcer is formed locally due to nursing, sucking, and friction between the ligament and the lower front teeth, resulting in difficulty in breastfeeding for infants and children, slurred spitting, and even abnormal dental alignment and psychological disorders. For those who seriously affect tongue movement should be surgically treated in time to relieve the adverse symptoms and create good articulation conditions, while giving the necessary language training to facilitate the development of children’s language. There are different reports in the literature on when and what kind of surgery can be better accepted by parents and have the least trauma and better effect on the children. Some scholars advocate that the procedure should be performed in the neonatal period after the eruption of the milk teeth; others believe that the best age for correction of short tongue tie is 1 to 2 years old. However, we believe that we should treat it differently: (1) When the short tongue tie is found in infancy and affects breastfeeding, it should be corrected surgically as early as possible, preferably before 6 months of age; because the nerve endings of infants are not well developed and their senses are dull, surgery does not require anesthesia and sutures, and antibiotics are generally not needed, and the children are small, so the trauma of treatment will not bring them psychological effects and will not make them fearful of hospitals and doctors. They will not be afraid of hospitals and doctors. (2) In the thick type, the tongue tie is too short, the surgery is more traumatic and requires anesthesia and sutures. Since children’s pronunciation is closely related to many factors such as auditory function, language environment and motor function development, it is important to improve the pronunciation function between 4 and 8 years old, so completing the tongue ligature correction before then will help to restore the normal tongue motor function and eliminate the hidden problems affecting pronunciation, which is beneficial to the normal development of language pronunciation system. The formation of the phonological system is a process of gradual formation of neuromuscular movement patterns. Once the abnormal neuromuscular movement patterns are firmly established, it is often difficult to correct them in a short period of time. Tongue ligature correction is to lay the foundation for normal language development of the child and to release the local tongue movement restriction. Brain neural development, language environment and language training are also indispensable and important conditions.