Resumen
No doubt that Islamic banks have proved its efficiency and effectiveness in both :In methods of financial management and also in the mobilization of financial resources for the sake to promote development in various economic sectors not only in Islamic countries but even in European as well and of course according to Islamic Sharia rules. The aim of this paper is to examine the performances and the Islamic methods adopted to improve the allocation of financial resources and its specific ways to boost earnings. Besides, Islamic financial assets were involved in huge financial markets due to its high quality of financial services provided to investors. Actually, Islamic banking exists in more than 67 countries and by the end of 2019 they may reach about 75 countries in the world. The results show that legislation, shortage of qualified individuals and the lack of using a high technology are the most critical factor of Islamic banking in Algeria.