Background and Objectives: Sexual dysfunction and intolerance of couples are among the problems of recovered addicts; they can have negative and irreparable consequences for these people and their families. The purpose of the present research was to evaluate the effectiveness of treatment based on improved quality of life on sexual function and intimacy of recovered addicted couples. Methods: This research was a quasi-experimental study with pre-test, post-test, and control groups. The statistical population consisted of all recovered male addicts with their couples in Kerman in 2017 (120 persons). Using purposive sampling, 30 couples (30 recovered addict men and 30 spouses) were randomly assigned to experimental and control groups. The treatment based on Improved Quality of Life was applied to the experimental group in 8 sessions. At the end of this period, both groups completed the questionnaires as the post-test. Data were analyzed using covariance analysis. Results: The results showed that treatment based on improving the quality of life significantly affected the sexual function and intimacy of recovered addicted couples (p <0.001). Conclusion: Due to the effectiveness of this treatment, its use is suggested to improve the sexual function and intimacy of addicted couples