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Background and Objective: Adolescence is a critical period which has physical, sexual and psychosocial changes. Scientists believe that adolescent must aware from necessary knowledge at critical time, because unawareness causes more sexual deviation. Thus in this study parents and teacher's view had been assessed about the best time and appropriate method for reproductive health education for female adolescents. Materials and Methods: In this descriptive study 400 parents and 50 teachers from girls' high school were chosen by multiple sampling in Gorgan-Iran. Information collected by a questionnaire which consisted of two parts of demographic characteristics and polling which contains three parts: fertilization and pregnancy, family planning, HIV and STDs. Descriptive statistic was used for analysis the Data by SPSS-9 software. Results: 43.5% of mothers and 38.5% of fathers believed that the best time for fertilization and pregnancy education is at marriage time, and 46% of teachers believed grade III high school and pre- university is suitable time. Majority of teachers and parents believed that the best time to teach family planning is at marriage time. 32% of mothers believed that the most suitable time. for teaching HIV and STDs is grade 3 at high school and pre- university but about 30.7% of fathers and 38% of teachers noted the best time is grade I and II at high school. About the most suitable education method, 45% of mothers and 44% of teachers believed that attending a midwife at school is necessary. Conclusion: This study showed that majority of parents and teachers agree with reproductive health education during high school and marriage time and they mentioned that the best education method should be done at school with attending a midwife as a counselor.