The patients in the research are divided into 4 groups: below 6 months old (10, 7%), from 6 months old to 3 years old (12, 3%), from 3 years old to 10 years old (22, 9%), from 10 years old to 15 years old (54, 1%), in which, the number of pediatric patients with malnutrition are primarily from 6 months old to 3 years old and from 3 years old to 10 years old while there is no malfunction among the below 6 months old object.