Objective To study the obesity intervention methods of preschool children in collective management and to provide the scientific basis for public health and early control,reduce the incidence of obesity. Methods Since July 2009,two kindergartens for intervention and control were randomly selected and children aged 3~4 years old in the park for a period of 2 years monitoring.Health education was given to the interventions kindergartens.Children's meal frequency and the incidence of obesity were compared between intervention and control kindergartens. Results After the intervention,the children's eating behavior of the control group kindergarten had obviously improved and there were significant differences(P<0.05).After intervention obesity rates had fallen,but compared with no significant differences(P>0.05). Conclusions Health education in preschool kindergarten to prevent obesity happened is feasible.But more favorable intervention measures are needed to reduce the occurrence of obesity for obese children.