the goal of the researcher to study the concept of micro-finance to determine the features, characteristics and knowledge of the obstacles that might hinder the success, in an attempt to access the knowledge of the control method most appropriate and to consider it as an activity Mali different from the rest of the financial activities and influence in the country and find out the role of central banks in support The development of this industry .And access to results that help to understand the nature of the work of microfinance institutions and the statement of its clients who must make use of its services, in addition to providing some solutions to issues that could reduce the obstacles to the continuity and sustainability of the work of those institutions, and the statement of the nature and function of central banks to support the continuation of the industry.