Background: Much research has pointed to the effectiveness of individualized schema therapy on early maladaptive schemas of traditional and industrial drug users, but there is a research gap in the methadone treatment group in Birjand. Aims: The aim of this study was to evaluate the effectiveness of group schema therapy on early maladaptive schemas of traditional and industrial drug addicts in Birjand city.
Method: Patients were treated at the Omide Farda Addiction Treatment Center. Among the patients present at the center, 45 met the inclusion criteria and were selected based on the available sample and replaced in three groups, Traditional drug users (n = 15), industrial drug users (n = 15) and control group (n = 15). The tools for collecting this data were Yang Short Form (1994) early maladaptive schema questionnaire. Data were analyzed using covariance analysis Experimental groups received 8 sessions of Schema Therapy training from Gholamrezaie and Tehranchi Therapy Scheme (2016) and Tehranchi (2016). Results: The results showed that the effect of group schema therapy on the improvement of early maladaptive schemas was significant (p<0/05). Conclusions: Using group schema therapy can improve the early maladaptive schemas of traditional and industrial methadone drug users.