The authors had surveyed on the snack foods of 300 primary school children in Seoul in order to obtain the informations for the dietary counseling and suggestions as a method of dental caries prevention. The obtained results were as follows; 1. Primary school children had the intake of the snack foods in the order of the apple, the candy, the orange, the cake, the milk, the biscuit, the Ramyeontang, the regular gum, the persimon, the Tugpokie. 2. Of the primary school children, 5.6% had intaking no snack food, but 10.6% once, 21.6% twice, 29.0% three times, and 33.0% four times or over in a day, respectively.