Congenital choanal atresia is a congenital obstruction between the nasal cavity and the nasopharyngeal vault. Bilateral or unilateral choanal atresia occurs as an isolated congenital anomaly and 50% are associated with other congenital defects. Bilateral choanal atresia demands immediate recognition in the newborn and restoration of the nasal airway as soon as possible. However, unilateral choanal atresia is usually recognized in childhood and requires an elective, safe operative technique with minimal morbidity and requires an elective, safe operative technique with minimal morbidity and predictable long-term results. The authors have experienced two cases of unilateral congenital choanal atresia with good result by transpalatal approached excision.