Objective To investigate the effects of intervention for basic maternal and child health services in Songjiang district of Shanghai,and provide the advice for effectively improving utilization of maternal and child health services. Methods The investigation subjects were mothers who took their babies aged one year to one and a half years to utilize basic child health service in all of fifteen community health service centers in Songjiang District during the survey time.In June to July 2013,the baseline investigation was conducted.In March 2013,the intervention was implemented,which mainly was free medical examinations for children aged 0~6 years old.In July to September 2014,the terminal investigation was conducted.The differences of awareness on the intervention and basic child health services utilization between two investigations were analyzed. Results Before and after the intervention,the proportion of investigated children who established examination cards were 87.5% and 92.2% respectively,the proportion of investigated children who took more than three physical examinations in the first year of their life were 86.8% and 92.0% respectively,and the proportion of awareness on the intervention were 62.6% and 75.1% respectively.The migrant population increased significantly.Multivariate analysis showed that both the intervention awareness and the intervention were related to the proportion of investigated children who took more than three physical examinations in the first year of their life,whose OR were 4.126 (P<0.001) and 1.875 (P=0.014) respectively. Conclusion The intervention is effective for improving basic health services' utilization,especially on migrant population.In the future,the awareness on intervention,the compensation method and service quality should be improved.