This study compares nurse-teachers' knowledge and attitudes toward AIDS after education with those before education. Data were collected by way of questionnaires, made up of two sections: to examine attitudes toward AIDS patients Kelly's prejudicial evaluation scale and social interaction scale was used, and to measure knowledge about AIDS a knowledge evaluation tool developed by the investigators was used. Subjects of the study were 108 nurse teachers participating in a qualifying education program which was held at Education College, Gyeong Sang National University in 1996. The data were analyzed using percentages, means, Pearson correlation coefficients and paired t-test. The results of the study were summarized as follows ; 1. The knowledge on AIDS of nurse teachers was improved considerably after a 2 hour education. The average score was 19.1 over 20.0 after education against 15.3 before education. 2. The prejudicial attitudes of nurse teachers toward AIDS patients were also improved with statistical significance; 33.63 over a total score of 60.00 after education against 31.81 before education. The prejudicial evaluation is performed on 12 items on a scale of 1~5. 3. The social interaction scale of nurse teachers toward AIDS patients improved a little. But this improvement did not show any statistical significance. 4. The prejudicial evaluation scale showed a significant negative correlation with the social in teraction scale before and after education, and the same was true for the knowledge scale but only after education.