Abu Bakr al-Razi (d. 313 H./925 A.D.), who lived in 10th century, is aMuslim Turkish philosopher. He contributed to the science of physic in sev eral aspects and in this field he wrote many works, most of which weretranslated to many European languages such as Latin, Greek, English, Ger man and French, and considered as lecture study texts in the EuropeanUniversities up to the 18th century. He also was regarded as the greatestphysician of the Muslim World and called as the „Galen of Arabs‟ because ofhis authority on the medicine.Al-Razi divided the science of physic into two divisions; one as „corporealphysic‟ which deals with physical and physiological diseases and the otheras „the spiritual physic‟ dealing with the moral diseases, and he set up somestrong relations between the body health and the spirit health. According tohim, the troubles of the spirit can be understood and explained by the clearevident of the physiological symptoms in body just because of the fact thattemperament of the body belongs to both the ethical rules of the spirit andthe self. As a result of these strong relations, the physician must be a well- informed doctor of both body and spirit. Therefore, al-Razi has granted theconcept; namely al-Tibb al-Ruhani, and the consideration into the Islamicthought to be modeled the periods afterwards. One of Abu Bakr al-Razi‟s most important opinion, which must be examinedcarefully, is his setting up the relationship between the physic and the eth ics. Al-Razi was regarding of the fact that there was an interwoven correla tion between the physic and the ethics and especially in order to set out hisideas dealing with the medical ethics, about which he had written a specialbook named Ahlaq al-Tabeeb. By the help of this book, Razi perhaps be came one of the authors who had written the first medical ethics. In thesame time, he mentioned about the medical ethics in another book namedMihnat al-Tabeeb. In this book, he cited some rules that both physiciansand the patient had to take into consideration. There are very importantsimilarities between his ideas on that and those of Hippocrates and Galen.In this article, we have tried to put forward the ideas of al-Razi, the greatMuslim philosopher and physician, about the medical ethics and to relatethem with the ideas of Hippocrates and Galen as well as the contemporaryapproaches in this field.