Objective To study the earlier education affects on the physique and intelligence development of normal infants. Methods Two hundred and fourteen cases of infants were divided randomly into 2 groups: experiment Group(receiving earlier education) and control Group. A couple of experienced medical staff was in charge of the physical development, neural system examination and mental test. Results The difference of height, weight and hemoglobin between the two infant groups was not significant(P>0.05). MDI(mental developing index) between the two groups was different significantly(P<0.05). PDI(psychological developing index) between the two groups was not significantly (P>0.05). Conclusions The earlier education of 03 years old infants may promote the mental development of normal infants.