In 1990 the Korea Air Force Academy became sex-integrated by accepting female cadets. The purpose of this study is to understand sex role identity of cadets and their attitudes towards women which is considered as one of main factors of sex integration. The subject of this study is 203 cadets and 200 university students as comparison group. The results are as follows. First, masculine identity prevailed among cadets regardless of sex. Second, female cadets showed the least traditional attitude towards female sex role compared with other groups. They also had most progressive attitude towards women as manager and women in the military. Third, there was a considerable difference in the attitude towards the role of women between female and male cadets. However, male cadets tended to be more positive attitude toward women than the male university students. The results were discussed in details a view to diagnosis of problems and issues that can be introduced from process of sex integration in the following four years.