About 80% of Down’s babies only survive to about 10 years of age; 50% of Down’s babies live to about 50 years of age. The life expectancy of Down’s syndrome children mainly depends on the developmental abnormalities of other systems that the children are combined with. If the children are combined with congenital heart disease, severe congenital gastrointestinal malformations, etc., the survival time of Down’s syndrome children is significantly reduced, and most of the Down’s syndrome babies can only survive to about 10 years of age. Down’s syndrome is a chromosomal abnormality caused by trisomy 21, which is mainly characterized by backward intellectual development and often accompanied by special facial features. However, early training and standardized education can improve the child’s mental development.