The article presented the theoretical aspects of preventive education, considered the essence and structure of preventive pedagogy and developed a method of conducting a practical lesson on the example of the discipline "Preventive pedagogy". Analyzed general principles of the preventive pedagogics as a new model of education, which takes into account all stages and components of personal socialization, considers the individual as the subject of educational process, provides his physical, mental, spiritual, social development, forming of responsible behavior, immunity to the negative phenomena of an environment, preventive maintenance and correction of destructive displays in behavior, social-legal protection. The article consists of the following parts: problem statement, analysis of recent research and publications, selection of previously unsolved parts of the general problem, purpose of the article, tasks to the article, presentation of the main material and substantiation of research results, conclusions and proposals, list of sources and literature. As stated in the Concept of preventive education of children and youth, preventive education should be a purposeful system of economic, legal, psychological, pedagogical, socio-medical, informational, educational and organizational measures aimed at forming positive social attitudes, preventing negative habits, suicide prevention and formation of healthy lifestyle skills. The system of preventive education is based on the theoretical and methodological principles of personality-oriented humanistic approach to the individual in accordance with the Law on Education, the content of education, based on the Convention on the Rights of the Child, international acts and recommendations on the situation of children and youth, national programs to combat drug abuse, prevention of acquired immunodeficiency syndrome, crime prevention. Preventive pedagogy occupies an important place in the system of educational work of the modern school. It includes preparatory and preventive actions of the teaching staff, aimed at preventing the formation of negative habits in young people, character traits, manifestations of antisocial behavior and the organization of proper care.