【Objective】 In order to reduce injury, health education about preventing injury-related behaviors were carried out in preschool children, parents and teachers. 【Methods】 Own control methods were used to compare the unintentional injury rate before and after intervention. In pre-school children, 873 children were intervened. Interventional methods included designing safety courses for teachers and health education for children and parents. 【Results】 Unintentional injury rate reduced after intervention. Parents not only increased awareness of risk factors after health education, but although changed risk factors in family. The unintentional injury rate after intervention was lower than that of before. 【Conclusion】Health education are useful for reducing unintentional injuries among pre-school children.