Microfinance issues have aroused the interest of researchers in recent years.Indeed, the state of research testifies to the abundant studies mobilizing different methodologies and samples. This article presents a review of the literature of the microfinance sector in order to improve our understanding of the results of previous research and to analyze the evolution of the sector by presenting a description of the sector and its impact. Our research methodology is that of a theoretical exploration through articles by researchers who have been interested in the theme of microfinance, reports of the Microfinance Information Exchange (MIX), report of the Consultative Group to Assist the Poor (CGAP) The reports of the supervisory authorities, the activity reports of the AMF ... etc.
JEL classification numbers: O16, G21, D21, I32
Keywords: Microfinance, microcredit, entrepreneurship, poverty, financial exclusion, impact.