---

The present research aims to study, understand and explain the experiences of parents of students and school administrators from parent participation in school affairs of children. This research is conducted in a descriptive phenomenological approach. For this purpose, 8 managers and 6 students from Hamedan schools were selected by targeted method and data were collected by semi-structured interview. The collected data were analyzed by Straubert and Carpenter (2003). Findings show that in both groups there is no identical definition of participation and people refer to the funds of participation. In the structure, administrators rely on parent associations and coaches as formal institutions and parents focus on personal relationships with school agents. The fields of participation in schools are diverse and factors such as the motivation and parenting of parents, the positive interaction of managers and the existence of a participatory culture in the school organization can strengthen it.