Abstract Background:This study aimed to determine the effectiveness of group therapy based on Acceptance and Commitment (ACT) on communication beliefs and marital satisfaction of the incompatible women referred to the counseling center of the Hakim Sabzevari University. Method: This study is quasi-experimental with pretest-posttest With unequal control group. the population in this study contains all incompatible women referred to the counseling center of the Hakim Sabzevari University in the year 93. The sample consisted of 30 women that are incompatible is purposefully selected and divided into two groups, experimental (15 Person) and control (15 Person) were assigned randomly. Members of the experimental group for 8 sessions of 90-minute group therapy were based on acceptance and commitment. for data collection from Enrich marital satisfaction questionnaire (47 questions) and Epstein and Eidelson (1981). communication beliefs (RBI) was used. research data with multivariate analysis of variance were analyzed by SPSS19 software. Results: The results showed that group therapy based on Acceptance and Commitment (ACT) is effecte on communication beliefs and marital satisfaction of the incompatible women and incompatible women in the experimental group compared to the control group in post-test communication beliefs (F= 213/12, P< 0/001) and marital satisfaction (F= 71/19, P< 0/001) showed a significant increase. Conclusion: So, group therapy based on Acceptance and Commitment (ACT) is effecte on communication beliefs and marital satisfaction of the incompatible women.
