The rapid advancement of biotechnologies involves human subjects that brings forth intricate ethical, legal, social, and religious challenges. Recent breakthroughs in cloning and stem cell research have generated new hopes as well as presents considerable promise for treating severe diseases and regenerative medicine. In this regard, for advancements in biotechnology to be clinically applicable in medicine, it’s essential to comprehend both scientific principles and ethical implications, taken into consideration the scientific roadblocks impeding advancement in therapeutic cloning such as tumorigenicity, epigenetic reprogramming and interspecies pathogen transfer. As research in this area progresses, it will clarify that stem cells can be obtained from various sources, including therapeutic cloning, which involves cloning embryos from the nuclei of somatic cells or cloning individual organs in the laboratory. This article studies  the legitimacy extent of therapeutic cloning in Islamic Fiqh and comparative law, using the comparative analytical approach. Thus, we have reached a number of results, the most important of which is that the Islamic Fiqh perspective on the illegality of extracting stem cells by creating therapeutic embryos using Somatic Cell Nuclear Transfer (SCNT). It is deemed unacceptable to create an embryo for the purpose of its development and then destroying it for the purpose of stem cells, as this is unacceptable that turns the human being into a source for spare parts. Conversely, cloning specific organs and tissues in the laboratory for medical purposes is considered permissible, provided that it does not harm anyone or violate their sanctity that is consistent with many comparative laws.