Death is not only a medical problem; it is also an ethical problem. When doctors face a dying neonate, their knowledge of bioethics and the opinions of ethical specialists and religious leaders are helpful for them and the family of the dying baby. In recent years, due to the increase of surviving babies who have suffered from severe illness, those born too small or too early, and those with severe anomalies in neonatal intensive care unit (NICU), we have met with complicated bioethical problems frequently. To lessen the burdens of doctors and the parents of the dying baby, I reviewed medical, ethical and religious articles about bioethics in adult death. My suggestions are listed as follows: 1) regular bioethical education and activation of bioethical committees in NICU, 2) a well-controlled nationwide database, 3) a hospice unit space and programs for dying baby in NICU, and 4) social support for pregnant women and financial support for the NICU.