This study examines the effect of teaching communicative patterns of Pluralistic Family on Marital satisfaction in woman with breast cancer.The present research design is a pre-test - post-test quasi-experimental method with control group. In this study, 30 women suffered from breast cancer who were referred to Imam Hossein Hospital in Tehran were selected in 2016, then randomly allocated to two intervention and control groups (each group=15 people).The standardized questionnaire of Marital Satisfaction Scale by Enrich before and after the intervention in both intervention and control groups.The findings indicated that Teaching Communicative Patterns of Pluralistic Family has a significant effect on on Marital satisfaction (p<0.01). Thus, considering the effectiveness of Teaching Communicative Patterns of Pluralistic Family on Marital satisfaction is so important for woman with breast cancer.