The study focuses on doctrinal and comparative research between positive law and Muslim law relating to life insurance. In a conventional system, life insurance is based on uncertainty, which is prohibited for Muslims who wish to take out a life insurance while the concept of the Islamic law in insurance is the basis of mutual aid. This article also describes the incompatibility of conventional life insurance with the precepts of Islamic law and whose jurisconsults will resort to legal theories in search of compatible solution with Islamic law precepts life takaful insurance.