The purpose of the study is to identify the change of nursing college students` attitudes toward mental illness in a psychiatric clinical nursing course. Using a CAMI(community attitude toward mental illness)questionnaire, data was collected over 4 months period from 66 nursing students before and after the psychiatric clinical nursing course. The psychiatric clinical nursing course did make a difference to students` attitudes of mental illness. The two concepts of four concepts in the scale revealed significant positive changesless authoritarian and less social restrictiveness. The students didn`t think the mentally ill as the control need to be and as they have to be isolated for being dangerous. The change of authoritarian and social restrictiveness in expected to take a major role in developing community mental health services. But there was no meaningful change in benevolence and community mental health ideology. According to nursing literature on nurses` attitudes revealed loess benevolent than low educated non professional group, we have to consider this result in future psychiatric mental health clinical education. The reason community mental health ideology had no change was to have a limitation which clinical course focused on mainly the hospitalized mental health nursing. In conclusion, these results have implications for developing further nursing curriculum and practice education. Nursing educators need to emphasize the internalization of nursing behavior in clinical setting and the change of attitude toward mental illness which is essential to community mental health nursing and policy decision making.