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The aim of this study was to examine the restrictions of parental involvement in secondary schools. The research approach was qualitative and phenomenological. The instrument for data collection was a semi-structured interview and research data was gathered  from 6 parent, 5 teachers, 3 principal and 4 students in three schools in Tehran 6th district. The content of the living experiences of those groups was analyzed according to Colaizzi pattern. The research results showed the restrictions of parental involvement in 3 Emergent Theme and 7 Theme Clusters including, school related factors  such as, Lack of Teacher and principals Preparation, Teachers Preconceptions about Parental Culpability, Home-School Scheduling Conflicts and Cultural difference between school / home. As parent related factors such as, Socio-economic condition and Lack of parental understanding of the value of their role, and finally, adolescent related factor such as, vagueness as to the role of parent involvement during adolescent years.