Об'єкт дослідження - existentional in society system of sexual relationships. Мета дос-лідження - the criminology characteristics of rapeing, the person of under age sexual violenter, causes and conditions, wich promoted them, the elaboration of methodical recomendations to priventive pofilactic work with teenagers, wich are inclined to commiting a sexual crime. Методи дослідження і апaратура - a) panscintific (system, functional, logic-legal, comparably-legal); b) part-scientific (psyhological, logical, extrapolation, simulation); c) concrete-sociological (interviewing, learning of criminal cases); d) statistical (observation, report, classification, analysis and generalization of metrics, correlation, functional). Теоретичні результати і новизна - the stated theoretical postulate can be for source scientific base for further learning crime-legal and criminological of aspects of raping to promote the process of further perfecting of norm (item 117 CC Ukraine). Практичні результати і новизна -this pro poses can be used like base for upgrading of profilactic work with teenagers, wich are inclined to commiting a sexual crime, some postulates and outputs of a thesis can be taken in educational process of juridical establishments and facultyes of Law during the courses of "Criminal Law of Ukraine", and to preparation of appropriate sections of the textbooks and manuals at the rate "Criminology and preventive maintenance of crimes", in scientific-discovering work of the students and cadets, whos studies in system of educational establishments of internal affairs of Ukraine, and during prepering of qalification employers of internal affairs. Предмет і ступінь впровадження - the methodical recommendations are directed to the Collegue of criminal cases of Supreme Court of Ukraine, to Office of criminal militia in cases of person under age in regions and in Crimea. For used in practical activity. Also used in educational process of the National Academy of internal affairs of Ukraine Ефективність впровадження - the methodical recommendations have received positive valuation. Сфери використання - practical activity of departments of internal affairs, educational process.