The normal palate consists of a hard and soft palate separating the nasal cavity from the oral cavity, with the muscles connected to form a complete muscular ring; a break in continuity may be the result of a cleft palate. When oral cleft palate, can be manifested as different degrees of cleft palatal vault, forward up to the incisal aperture or alveolar eminence, the cleft part of the hard palate and the nasal septum is not connected, will make the mouth and nose connected. When the soft palate is cleft to different degrees, it is difficult to form palatopharyngeal closure, which will affect the function of the eustachian tube, resulting in multiple dysfunctions, such as sucking, speech, and hearing. Disruption of the posterior palatal line is mostly a congenital malformation, and it is recommended to seek medical treatment as soon as possible to avoid affecting the development of the jaws and mental health.