The UNFPS in Comprehensive Sex education states that every young person will one day have life-changing decisions to make about their sexual and reproductive health. The majority of adolescents lack the knowledge required to make those decisions responsibly. Which leads them vulnerable to coercion, sexually transmitted infections and unintended pregnancy. (UNFPA-2016)Education is the inevitable part of an individual’s development and growth. Adolescent period is the time where major reproductive changes takes place. Where an individual starts to think about self as well as observe the drastic changes happening in his/her physique, psycho, emotional and social aspects. An individual basically educated from home, school and society. The state also plays an important role to provide minimum education for an individual. Education includes all the aspects of life. Education must start from home and teachers and school continues it to make a healthy generation along with societal participation. In this context Sex education plays a vital role in an individual’s life especially in adolescent period. In this descriptive study the researcher deals with the parent’s opinion on need of Sex Education in schools in the context of Reproductive Health. The study conducted among 60 parents from CBSE School in Ernakulum district, Kerala. The self-prepared questionnaire administrated using convenient sampling. The data analysed using IBM-SPSS-20. The findings shows that more than one third of the parents (38.7%) don’t know the components of reproductive health syllabus the half of the respondent (54.8%) has opinion that the syllabus is not enough for real life.