Addiction is a condition in which the patient consistently repeats the behavior that has bad effects. It affects the behavior by disrupting control over the behavior-reward system. The addictive disorder affects the nervous system of the reward, stimulus, and memory system in the brain, and the disruption of these systems in the brain causes biological, physiological, and social, complications. In the study of addiction as a psychological, social and economic disorder and the viewpoints of medical science, psychology and sociology, as well as the views of philosophy, law, ethics, and religion are taken. Substance abuse, or abusive habits, is a psychiatric disorder and psychology that, on the one hand, eliminates the meaning of happiness in the life of the individual and his family and, on the other hand, leads to countless social and economic harms. The burden associated with drug dependence in the countries after accidents, cardiovascular disease and depression are in the fourth place in the classification of disease burden. These facts indicate that the provision of treatment for drug use disorders is of high importance in promoting community health. On the other hand, the main therapeutic approach to stimulants is one of the main components of opiate treatment in non-pharmacological and psychotherapy treatments. Educational psychology for all psychologists who want to serve in substance abuse treatment centers can be fruitful. This training course is provided by OXFORD EDU in various countries.