The purpose of this study was to investigate the effects of family-of-origin experiences(family-of-origin health, parents' marital satisfaction, parents' care, and parents' overprotection) on marital intimacy. Data were collected using the self-administered questionnaire method by Internet Survey of 480 married men and women. The results showed that first, there were significant differences between family-of-origin experiences (family-of-origin health, parents' marital satisfaction, parents' care, and parents' overprotection) and marital intimacy according to sex, educational level, income, and the first-rum child's school level. Second, marital intimacy was positively correlated with family-of-origin health, parents' marital satisfaction, and parents' care, but was negatively correlated with parents' overprotection. Third, the results of multiple regression analyses showed that indicated that the marital intimacy of married men and women were influenced by education level, income, the first-born child's school level, and family-of-origin health.