Aim: To study the caries susceptibility of Snyder test to assess caries susceptibility in school children. Material & Methods: A total of 30 school children of 4-12 years age group were randomly selected. The collection of saliva was made under similar conditions at the same time. The patients were instructed to take lunch and drink water at 11 am and not to consume anything after that. The saliva was collected for the Snyder test. Results: With decrease in pH of the saliva the children are more susceptible to dental caries. At ph above 6, children did not show any change in colour, demonstrating that as the pH of saliva is increased or towards normal the tendency towards dental caries decreases Conclusion: The caries experience was found to be significantly more in children who showed marked changes in the colour indicating a high degree of correlation of Snyder test with DMFT/dmft Index.