With the cognition and analysis of the phenomena of brain death through the modern bioethics technologies during the past 50 years, scientists of medicine, philosophy, ethics, law and religious clerics have all faced a new challenge as to the conditions and subjects of such death and it seems despite passage of decades, discrepancies still go on so that two main groups are facing each other. Those who regard the brain death as conclusive death and those who regard it as a part of life due to the continuation of blood circulation and heart and breath livelihood. With comprehension of brain death and its consequences in all economic, social, legal and theological aspects, It seems that brain death is neither a conclusive and complete death and nor life. Rather we may analyze it as a newly emerged phenomena under the modern bioethics technologies that defines a particular status and its "reson d' etra" in the purposeful system of creation is to accommodate the requirements of patients in need of organ transplantation. Benefiting from this theory and making it known to the members of the society within sustained cuture-making methods, organ donation of brain death patients should be promoted into an accepted ethical principle in the society.