Objective To improve the physical and mental health of children through early childhood development project. Methods The parents of 822 children filled in the questionnaires about the social-demographic and social-emotional assessment for children aged 12~36 months.244 children's parents were measured again after accepted early childhood development project in our center after half a year. Results The positive rates of externalizing,internalizing,dysregulation and competence were 7.9%,9.6%,13.7%,10.3%,respectively.The boy's scores and positive rates were higher than the girl's about externalizing and dysregulation.On the contrary,the girl's scores and positive rate was higher than the boy's about internalizing.Mother's education level was the important factors for each field.The positive rates of each field of the 224 children's were reduced after half a year. Conclusion Parenting science of family and the services of institution are combined,it will contribute to the development of children's physical and mental health.