Objective   To explore a valid, feasible and reliable intervention model on dietary knowledge, dietary attitudes and dietary behaviors of pupils.

  Methods   Pupils of grades 3, 4 and 5 in Taoyuan elementary school in Taiyuan city were examined by self-designed dietary knowledge, dietary attitudes and dietary behaviors questionnaire in the baseline and were assigned to intervention group and control group.The balance between the two groups was tested statistically.The pupils of the intervention group received intervention for half a year.After intervention dietary knowledge, dietary attitudes and dietary behaviors of pupils in both groups were assessed again.

  Results   The mean scores of dietary knowledge, dietary attitudes and dietary behaviors of intervention group were significantly higher than that in control group.

  Conclusion   The methods of the intervention study was appropriate and the contents of the inter vention was suitable.