Background: Communication has a fundamental role in marital life and lack of effective communication is a common compliant of married couples attending counseling and treatment centers. Objectives: This study was conducted to examine the effect of communication skills on marital satisfaction of couples attending premarriage counseling centers. Methods: This parallel interventional study was conducted on 60 couples who attended a premarriage counseling center (Shahid Rast Ravesh) affiliated to Alborz University of Medical Sciences. A simple sampling method was used and samples were allocated into the intervention and control groups using blocks randomization. The intervention group, in addition to the routine trainings, received training on communication skills and sexual relation. The Enrich's marital satisfaction questionnaire was completed by the participants in both groups before, after and two months after the intervention.