Marriage is defined as a sexual, emotional and economic partnership that is socially and/or legally sanctioned. Sexual behavior is an important aspect of marital satisfaction. Sexual relationship can be communal, or exchangenal. The aim of this study is to evaluate the psychometric properties of sexual relationship scale.This research is a descriptive-correlational study with a random sampling of 121 couples to investigate the construct validity, 21 persons (10 females) with marital problems to examine the differential validity and 30 persons (15 females) for test-retest reliability. The sum of samples is 293. Original Sexual Relationship Scale (24 items) and Sexual Relationship Subscale from ENRICH Questionnaire (10 items) were administered. Collected data were analyzed using exploratory factor analysis, MANO-VA, Pearson Correlation, and Chronbach Alpha. Exploratory factor analysis supported a 3-factor (17 items from 24 original items) solution namely “communal orientation, ” “exchangenal orientation, ” and “dem-and”. MANOVA shows a significant difference (p< 001) between the normal group and the group suffering from marital problems in “exchangenal orientation”. Correlation between “communal orientation” and sexual relationship scale from ENRICH questionnaire was found to be 0.92. The results provide further support for the differential, and convergent validity of the SRS. Chronbach’s Alpha for the factors ranged from 0.81 to 0.90. Test-retest reliability was between 0.92 and 0.96, supporting the reliability of the SRS. The 17-item SRS was found a useful scale for research on marital satisfaction, for professionals to help those in need choose an appropriate marriage therapy method.