Primary school education in Nigeria is seen as very important and available to all. In order to fully accomplish its goals effectively, the Federal Government of Nigeria welcomes the involvement of voluntary agencies, private individuals and parents especially in this level of education. Accordingly, this study assessed the level of parents' involvement in public primary school education in Nigeria. The study adopted the descriptive approach. 300 teachers were randomly selected from 30 public primary schools to take part in the study. Findings from the study revealed that the level of parents' involvement in primary school education in the areas of provision of instructional materials, curriculum implementation and administration was low. It was recommended therefore that government and other concerned organizations should organize trainings or seminars for head teachers, teachers and parents on the importance and effective ways of involving parents in primary education. Also, a policy for the support and involvement of parents in primary school education should be taken into account.