Objective To investigate the current status of child restraint system(CRS) use,and analyze related factors. Methods A questionnaire survey of children's car taking status was conducted among 1 119 3~6 years old children's parents who owned private car selected through cluster random sampling in Huangpu district.The survey included basic demographic characteristics,the use of CRS etc.Chi square test was used to compare the rates among groups,and multivariate Logistic regression analysis was used to screen the risk factors. Results Of 1 119 parents surveyed,62.02%(694/1 119) reported to have CRSs and 25.92%(290/1 119) reported consistent use of CRS.Multivariate analysis indicated that young age of children,local household registration,One-child family,high level of education of parents,good family economic status were the positive factors for CRSs use.The parents' awareness of importance of children's taking car safety,the frequency and distance of children's car taking significantly influenced the CRS use. Conclusion sThe CRS utilization rate is low.Parents have misunderstandings in using CRS to protect child passengers safety,it is necessary to strengthen the propaganda and education.