This research aimed to study and identify the principles as well as the approaches and methods for sexual education in Islam through a documentary analysis. The statistical universe was all related Islamic texts. Research instrument has been indexing and no sampling has been made. Collected information was qualitatively analyzed and the following results were obtained: The principles of sexual education in Islam consist of ten bases and they form twenty principles and ninety six educational methods. The ten bases are: the effects of conditions on man, the effects of man on conditions, weakness, eagerness for generation continuing, mans sexual capacity differences, man's inherent love for opposites sex, need, thoughtfulness, and the process of man's development. Finally the research findings were submitted to fifteen religious school theologians and university professors which were ultimately approved by them