This objective of this research was to describe the role of parents to the sex education of children aged 4-5 years at Village Bagan Punak Meranti District Bangko Bagan Siapi-api Rokan Hilir. Sample of this research are 183 parents in Bagan Punak Meranti Village Bangko Subdistrict Bagan Siapi Rokan Hilir. Datas were gathered with quesioner that explane statemants about the role of parents for s…