Introduction: This study examined the effectiveness of Cognitive-behavioral marital training on increasing marital satisfaction in women. Marital satisfaction, irrational beliefs, and emotional maturity were examined as the main variables.Method: Thirty married women (15 in experimental group and 15 in control group) volunteered to participate in this study. All subjects completed three scales: Attitude toward Marriage Inventory, Emotional Maturity Test and ENRICH Marital Satisfaction Questionnaires to assess their irrational beliefs, emotional maturity and the degree of marital satisfaction/dissatisfaction as a pre-test and post-test assessment.Results: Subjects in experimental group participated in four subsequent cognitive-behavioral marital training workshop sessions. The findings showed that the experimental group significantly improved in all variables.Conclusion: The results of this study revealed that Cognitive-Behavioral Marital Training is an effective program to increase the marital satisfaction and marital adjustment via decreasing irrational beliefs as well as improving emotional maturity of married couples.