Objective To investigate parental knowledge,attitude and behavior (KAP) change and influencing factors of 0~3 years old children's parents in community after the implementation of child health management specification in pilot areas. Methods 791 and 747 questionnaires of children's parents were collected who were in pilot areas carried out the implementation of 0~3 years old children's health management specification in 2007 and 2010.χ² test was employed to analysis 0~3 years old children's parents with parental knowledge,attitude and behavior changes before and after the implementation of the specification.Logistic was employed to analyse their impact factors. Results After intervention,children's parents with the awareness of knowledge about "iron to prevent anemia,eat the liver can provide iron'' were significantly improved,the attitude of children's parents to find a doctor for each examination were significantly improved,the behavior of children's parents to the child's oral care were improved (P<0.05);Intervention,education level,household,children's health management were the main factors for parents of children with parental knowledge;intervention,household,children's health care institutions were the main factors to affect the parents of children with parental behavior. Conclusion To some extent,the implementation of community 0~3 years old children health management specification increased parental knowledge and attitudes of children's parents,improving parenting behavior.