Aims: Marriage significantly influences individuals’ roles and developmental trajectories. This study investigated the effectiveness of emotion-focused group therapy on emotion regulation in divorced women, focusing on anger, positive affect, and internalized shame. Materials & Methods: The study utilized a quasi-experimental design, incorporating a pre-test-post-test framework with follow-up assessments at one and three months, and was conducted on 20 divorced women. The samples were divided into the experimental and control groups. Data were analyzed using repeated measures ANOVA by SPSS 25 to examine changes in emotion regulation. Findings: Significant differences were noted between the experimental and control groups in the regulation of anger and positive affect, as well as in levels of internalized shame. No notable differences were observed in depressed mood and anxiety levels. Conclusion: Emotion-focused group therapy effectively enhances emotion regulation among divorced women, particularly in managing anger and internalized shame.