This book was carried out to analyze the borrower's demographic factors influencing MF loan repayment performance. This was after the observation that the level of loan defaults in MF institutes was still high despite the various mechanisms being put in place, thus intimidating development, life and even their survival. The book covered MF loan borrowers within the District of Colombo. Five demographic charactors were analyzed which were: age, education level, gender, marital status and household size that influence loan repayment. It suggests that government and other financial-sector stakeholders should ensure that the borrowers have access to formal education and sufficient business-related training and regulatory bodies such as Sri Lanka's Central Bank should act decisively to regulate all MF institutes to build a positive economic condition within the country.