This study investigated the relationships of care-oriented morality and justice-oriented morality to gender and sex role identity in young adults. The subjects of this study were 42 males and 46 females, the age of 30 to 39 years old. Care-oriented morality was assessed by the Ethic of Care Interview(ECI) and justice-oriented morality was assessed by the Korean Defining Issues Test(DIT) while sex role identity was assessed by the Korean Sex Role Inventory(KSRI). Care-oriented morality of most of the subjects was on level 2. The P(%) score of justice-oriented morality of most of the subjects was found to be pretty high. Sex differences were found both in the levels of care-oriented morality and justice-oriented morality. That is, women were higherthan men both in care-oriented morality and justice-oriented morality. However, no significant difference in sex role identity types was found both in the levels of care-oriented morality and justice-oriented morality.