Background and aims: According to the prevalence of opiates dependent and its individual and social outputs, the aim of this study was to examine the effectiveness of problem solving group training on marital satisfaction and quality of life in Drug-dependent patients (opiates).

Methods: This research was a study in experimental category with 2 groups of experimental and control and 3 phases; pre, post and follow-up (after 1 month) test. The study population consisted of all Drug-dependent patients in Shahrekord, and the research sample was 40 persons with entrance criterion. The data collection instruments were Quality of Life, and Enrich Marital Satisfaction questionnaires. The treatment was 8 sessions with 2-hour instruction.

Results: Findings indicated that group problem solving instruction on marital satisfaction in post-test (F=37.58; P<0.0001) and follow up (F=43.17; P<0.0001), and quality of life in post-test (F=93.80; P<0.0001) and follow up (F=362.49; P<0.0001) in experimental patients group, compared with control group was effectiveness, and effect size were different from 0.41 to 0.7.

Conclusion: Results showed that the problem solving instruction promoting quality of life in drug-dependent patients and reducing their marital conflicts. So, the problem solving instruction is effective in improving the family situation.