The present research aims to study the manner of attachment, adaptability and mental health in addicts and people who quit the addiction. The present research’s statistical population includes addicts in Ahvaz city who have gone to drug addiction rehabilitation centers for several times in 2016 and there are people who have rehabilitated for more than 15 months. The design of this research was causal-comparative and the data were collected by Sohrabi and Samani (2011), Adolescent Attachment Scale of Collins and Reid (1996), Mental Health Scale (GHQ) (1972) and it was statistically analyzed through the SPSS tool and statistical t- test method. The findings showed that the average scores for those who rehab the addiction were significantly higher than those who were unable to rehab. The score of those who were unable to rehab the addiction in two attachment styles including secure and avoidant is less than those who rehab, but it is higher and statistically significant at anxious attachment.