Objective To improve the eating behavior of preschool children through the intervention of eating behavior among rural preschool left behind children.Methods Firstly,select Liaocheng as the field.Secondly,villages were randomly divided into intervention and control groups.The intervention and control groups had three towns.Thirdly,eligible households and target children were identified. Results After the intervention,the ratios of snack (31.1% vs 59.4%) (all P<0.05)) and eating while watch TV (51.7% vs 66.5%) were lower than the control group,knowing children's dieting regularly and supporting nutrition education were higher than the control group.In intervention group,snack's number of children decreased from 73(48.3%) to 47(31.1%),having no breakfast's number decreased from 28(18.5%) to 12(8.0%),food face's number of children decreased from 101(66.9%) to 78(51.7%),anorexia's number of children decreased from 66(43.7%) to 25(16.6%),telling children to take care products' number of parents decreased from 43(28.5%) to 28(18.5%).Conclusion After the intervention,the eating behavior of the preschool left-behind children is better.