This study aims to find out the social factors leading to return to drug addiction; to identify the role of the social worker to help the recovered patient not to return to drug addiction, and to suggest the possible mechanism that can assist to limit the return to addiction. The study is descriptive and depends on the social survey of all the 100 inpatient and out patient addicts who returned to addiction after they have received therapy at the Addiction Treatment Department existed in Ibn Sina Hospital during the period of data collection. The study also includes a purposely selected sample of the members of the medical team working in addiction therapy (15 persons). Therefore, two instruments for data were used: a questionnaire administered with those who returned to addiction and an interview schedule for the medical team working at the at the Addiction Therapy Department. The results of the research were obtained by using the SPSS program in the processing and statistical treatment of the data collected statistical treatment to reach to the results to an analyze them. These treatments are represented in determination of frequencies and the related percentages, assuring the reliability of data collection tools by using Pearson correlation coefficient, and identifying the variation in the impact of the social factors on the return to the addiction according to some preliminary data, by using the One-Way (ANOVA) analysis for the multi-dimensional comparisons, The study has obtained a set of results with respect to the factors leading to the recurrence of addiction. The most important of these factors include the following: 1- Returning to the same environment and conditions that lead to addiction in the first place. 2- Leisure time and its use in a non-positive way. 3- Unemployment 4- Weaknesses in the rehabilitation program. The study has reached a set of suggestion. The most important ones are: -Raising therapy efficiency, developing the rehabilitation program, improving the service offered to the patients, and providing relaxed health environment in the clinic as a motivation to continue the therapy. -Working on solving the social and economic problem of the recovered, in addition to providing them with rehabilitation program. - Activating the role of the educational institutions in making students aware of the impacts of drugs, urge them to face the problem of return to addiction, and to work on expanding the plan to eliminate the illiteracy of parents. -Activating the role of the security agencies to eradicate the problem of addiction and return to it through detecting the drug traffickers and intensifying the awareness program about the size of the problem of addiction and return to it. - The need to expand the establishment of addiction therapy centres to include all the sultanate walaiat instead of a single centre and the established of a comprehensive rehabilitation centre equipped with all the means to help the recovered patients to acquire skills. -The study recommends a set of mechanisms to implement the of the above-mentioned suggestions and proposes a framework for the role of the social worker in dealing with the patients recovered from drug addiction and helping them not to return to it.