Objective To study KAP mode intervention on parental knowledge attitude and behavior of the mother in child rearing process in order to promote the growth and development of infants. Methods 401 babies born in International Peace Maternity and Child Hospital,were randomly divided into intervention and control groups,to carry out four parents' school curriculum to the class parents,compared the differences between two groups' parental knowledge and feeding behavior before and after of intervention.then offer them the growth and development monitoring;evaluation guidance individually. Results One-year-old the study group had much progress than control on parental knowledge.They care of the feeding behavior,good dining environment,properly dining speed,and encourage children to feed themselves.The picky eaters were much less than control.Body length and weight on 3-month,5-month,the two groups had significant differences (P<0.05 ) that showed the study group was higher than the control.The length of girls in two groups in 5month-old had significant differences (t=2.65,P<0.01) study group was higher.Infant neurodevelopment assessment in terms of adaptability of language also the same difference.the study group score was higher. Conclusion The knowledge of KAP mode intervention can improve parents' child-rearing knowledge attitudes and behavior to infant's growth and development.it has a positive role in promoting.