Purpose: The purposes of this study were to develop an elderly care nursing education program and evaluate its effect on knowledge, attitudes and nursing performance of nurses toward older adults. Methods: A quasi-experimental study with a non-equivalent control group pretest-posttest design was used. Participants were recruited from two geriatric hospitals. The sample consisted of an intervention group (n=29) that participated in the educational program and a control group (n=30). The data were collected prior to and 6 weeks after the intervention using self-administered questionnaires. Data analyses utilized x²-test, Fisher’s exact probability test, and t?test. Results: After the intervention, knowledge and nursing performance about the elderly care increased significantly in the experimental group compared to the control group. However, there was no statistically significant difference between the groups in their attitudes toward the elderly. Conclusion: Findings indicate that to provide better nursing care to the elderly, nurses need to be able to practically apply the knowledge they have acquired from the elder-care nursing education programs in hands-on situations. To achieve this, nurses should work to change their personal attitudes about the elderly. Also, evidence-based guidelines for elderly nursing care, administrative support of institutions, and multidisciplinary approaches are required.