Purpose To evaluate the effectiveness of a Silver Hour End-Of-Life (SHEOL) program in enhancing end-of-life care performance among new nurses. Methods: A nonequivalent control group pre-post test design was adopted. A total of 34 new nurses working at a tertiary general hospital participated in the study. The experimental group (n=17) participated in the SHEOL program, which was delivered through hybrid simulation (180 minutes), while the control group (n=17) received a theoretical lecture on end-of-life care (90 minutes). The intervention and data collection were conducted from August 8 to September 30, 2024. Results: Compared to the control group, the experimental group showed a significant reduction in fear of death (χ2=11.69, p=.003) and significant improvements in attitudes toward end-of-life care (χ2=6.99, p=.030), self-efficacy of end-of-life care (χ2=6.51, p=.039), and performance of end-of-life care (χ2=20.07, p<.001) both immediately and 4 weeks after the intervention. Conclusion: These findings suggest that the SHEOL program can be effectively used to alleviate fear of death, improve attitudes and self-efficacy regarding end-of-life care, and enhance end-of-life care performance among new nurses.