Cleft palate is more common and can occur alone or in combination with cleft lip. Cleft palate is not only a soft tissue deformity, but most patients with cleft palate may also have varying degrees of bone defects and deformities, which are far more serious than cleft lip in terms of sucking, eating and speech and other physical dysfunctions. As a result of jaw growth disorders, the middle of the face often collapses, resulting in a disc-shaped face and a misaligned bite (often antimandibular or open jaw) in severe cases. Therefore, the multiple physiological dysfunctions caused by cleft palate deformities, especially speech dysfunction and dental malocclusion, adversely affect the patient’s daily life, study and work, and also easily cause psychological disorders. The cause of cleft palate is not fully understood, but it is thought to be related to nutritional deficiencies in food during pregnancy, endocrine abnormalities, viral infections and genetic factors. As a congenital developmental defect, cleft palate changes with age as the deformity grows and develops, including the physical developmental defects present in the deformity itself, secondary changes in jaw and facial appearance due to surgical trauma, functional disorders such as speech and hearing, and psychological disorders that develop in patients during social interactions. To prevent the occurrence of cleft palate, a number of preventive health measures need to be taken. During pregnancy, pregnant women should avoid partial diet, ensure adequate intake of vitamins B, C, D and calcium, iron and phosphorus, maintain a calm state of mind, avoid mental tension, refrain from taking antitumor drugs, anticonvulsants, histamines, keminine and certain sleeping pills for pregnancy vomiting, refrain from smoking and alcohol abuse, avoid exposure to radiation and microwaves, etc.