Mass screening of 827 faculty members in Ewha Womans University was conducted to examine prevalences of chronic diseases and usefulness of pre-questionnaire for detection of chronic diseases. The rate of unhealthy state among the participants was 6.7 per cent and was higher in male(10.7%), the older age group(13.2%), and the teaching staff(8.6%). Of the chronic diseases, diseases of the circulatory system were more highly detected. The results of health examination were in accord with the responses on pre-questionnaire for detection of chronic diseases in 65.2 per cent.