<p>Empathy for the suffering of others is a crucial aspect of human social interactions. However, the relationship between moral judgment and empathy for pain remains unclear. Boredom can serve as a motivating emotion, leading individuals to actively reestablish a sense of meaning, which may impact moral judgment and empathy for pain. Therefore, the primary objective of this study was to explore the relationship between moral judgment and empathy for pain by manipulating levels of boredom using the peg-turning task. The pain intensity scores indicate that participants in both the control group and the boredom group experienced greater pain for moral targets than for immoral ones. The findings from event-related potential analysis revealed that there was no pain empathy effect on the N2 component. Interestingly, the control group displayed similar empathetic pain responses on the Late positive component (LPC) for both moral and immoral targets. In contrast, the boredom group exhibited reduced pain empathy effect on the LPC specifically for immoral targets compared to moral targets. These results provide evidence that the relationship between moral judgment and empathy for pain is indeed influenced by boredom.</p>