This search is to study the associated factors of marital discord among couples referred to the family court of Meshkin Shahr in 1391. In this search population of 280 people have been chosen among 900 sample using Cochran's formula and the research method is survey. The data were gathered through questionnaire and theories of functionalism, homogamy, heterogamy, network and exchange were used. To measure the variables Pearson correlation coefficient, ANOVA and t-test were used. On the basis of research findings, there is a positive correlation between marital discord and couple's failure in life, other's intervention in couple's life, couple's class differences, couple's opinion differences, the degree of couple's religiosity and couple's age differences. The marital discord in terms of family income, education and occupation levels of couples were not different, but it is different in terms of couple's addiction.