The article deals with the issues of organization of drug addiction preventing in the Republic of Belarus. The authors engage in a controversy with F. B. Plotkin about the efficiency of preventing drug addiction. The Republican Centre of Narcological Monitoring and Preventology role is shown. One of the Centre activities directions is the problem prevention including sanitary and educational work among the population, development, introduction of new technologies of alcohol abuse and drug addiction prevention on the territory of the Republic of Belarus. Reference is made to the work of the educational centre having operated since 2017 on the basis of the Republican Scientific and Practical Centre for Mental Health and is providing successfully advanced training and internships for psychiatrists and drug addiction specialists nowadays. The article provides statistical data on the narcological service work on the addicted patients treatment and prevention of drug addiction and shows the narcological service tasks for the future.