Abstract: Objectives To identify major factors of overweight in preschool children, and to provide theoretical basis for intervention measures.Methods A cluster sampling method was used. Questionnaires were distributed to total of 1724 parents of preschool children from six First-class kindergartens from October to December of 2016. Multivariate Logistic regression analysis was used to identify potential correlates.Results The prevalence rates of overweight preschool children was 11. 5% (5. 3% for boys and 6. 2% for girls). Multiple Logistic regression analysis showed that rparents' high BMI was a risk factor for overweight in preschool children. Parents' high awareness of childhood obesity and consumption of a variety of vegetables were protective factors for overweight in preschoolers.Conclusions The incidence of overweight among preschool children in this survey was higher. Early intervention measures should be taken for reducing the incidence and development of overweight among preschool children. In order to prevent the occurrence of overweight among preschool children, the related research should be further strengthened.