A health education action for childhood injuries prevention took place from october 1988 to march 1989 in the town of Chambéry (Savoie), a town of 95,000 inhabitants. The health education concerned 21,950, 0 to 15 years old children and their close relatives (parents or educators). Two assessment means were applied: 1) a questionnaire submitted to the parents and the children before and after the intervention; 2) a comparison with the evolution of chosen indicators in a control town (Annecy, Haute-Savoie, 112,000 inhabitants), the informations being supplied by private doctors, hospital, clinics, pupils insurance and anti poison centres. The comparison between the action and the control areas shows a tendency towards a decrease in the action area of the frequency of home accidents and calls to the anti-poison centres. However the overall impact of the action looks weak and possible variations appears difficult to ascertain. This work highlights the methodological difficulties of the evaluation of community health education actions.