Language activity, unique to human beings, is governed by higher centers and requires the participation of multiple muscles and structures in the oropharynx. Children with cleft palate cannot achieve palatopharyngeal closure, so their pronunciation is characterized by unclear and weak consonants (nasal leakage), such as “auntie” instead of “big daddy”. “. This abnormal cleft palate language is usually difficult to correct after forming habits, at least not by surgical treatment alone, just as some patients with physical disabilities often develop a special gait, which does not disappear immediately after the physical disability is surgically corrected, but requires a certain period of exercise. Therefore, cleft palate repair surgery must be completed before the child begins to learn to speak, so that the child’s language development process is based on a normal anatomical platform, which can minimize the occurrence and severity of persistent cleft palate sounds. 6-12 months is the foundational period for infant language development, while 1-2 years is the period of rapid language development, so completing it before the age of 1 year, i.e., 6-12 months Cleft palate repair is essential to ensure postoperative language outcomes. Surgical treatment of cleft palate in infancy is a treatment method that has gradually become popular internationally in the past 20 years, with good speech results, few complications and short operation time. Surgical treatment of cleft palate within 6-12 months of age has been widely performed abroad. Scholars generally agree that cleft palate repair should be performed within the first week of life; it is worth pointing out that cleft palate surgery in the neonatal period is not accepted by most physicians because of the high risk of anesthesia, the small and slender palate tissue, and the small operative field. It is now generally accepted that surgical treatment of cleft palate within 6-12 months of age allows early discontinuation of pathological speech patterns in cleft palate patients, prevents disuse atrophy of the palatal muscles, and most patients will have normal or essentially normal speech. The incidence of upper respiratory tract infections is reduced and the psychological health of the child and parents is benefited. Also surgical treatment of cleft palate within 12 months of age has the advantage of low surgical blood loss and few complications. Some studies have concluded that surgical repair of cleft palate in infancy is not the main factor interfering with jaw development; it is precisely during the most rapid period of jaw growth and development, from 8 to 12 years of age, when surgical treatment of cleft palate is most obvious in terms of jaw deformity. Recent reports in the domestic and international literature have shown that surgical treatment of cleft palate during the perioperative period does not increase the incidence of postoperative fistulae, and there is no difference in postoperative bleeding or operative time, but their surgical blood loss is relatively low and no blood transfusion is required. This shows that treating cleft palate at 6-12 months of age is a more ideal time for surgery and should be vigorously promoted.