Objective   To adopt the model of Internet child heath  care to monitor the early growth and development of children and explore the early childhood growth and development assessment and intervention techniques for community in order to provide new strategies for grassroots children's graded diagnosis and treatment model. Methods   A cluster sampling plan was adopted. Infant growth and development monitoring and evaluation system used by the trained grassroots child care physicians from June 2017 monitored the growth and development of 500 infants and provided targeted family intervention guidance and referral. The growth and development data were collected at the end of intervention for 6 months. Results   Through 6 months of monitoring, evaluation and intervention, the body weight, the gross motor, the fine motor, language, and social interactions of children significantly improved(P<0.05). Conclusion   The model of Internet child health care is well integrated with early childhood growth and development assessment and intervention, which is feasible and reliable, profits to graded diagnosis and treatment of diseases, and is worth promoting in community.