In an effort to investigate nurses' perceptions of and attitudes toward the use of electronic medical record (EMR) systems, 904 nurses in a university hospital were surveyed for demographic data and their perceptions of and attitudes toward an EMR system 6 months after its implementation. The questionnaire consisted of demographic information, perception statements relating to the effect of an EMR system, and attitude statements toward an EMR system (assessed on 4-point Likert scales, Cronbach's alpha = 0.979). Nurses' perceptions and attitudes were generally positive and correlated with the type of nursing unit, and their age, years of nursing experience, and job title. This result reinforces that nurses are generally accepting of the implementation of a new EMR system. However, strategies are needed for improving the satisfaction of nurses who have a negative perception of and attitude toward EMR systems. It is recommended that the findings of our study be implemented in other hospitals with ongoing EMR projects.