The disruptive effects of the subprime financial crisis have raised new global concerns toward the increasing income distribution inequality. Nowadays, it has become one of the mainstays of public and scientific discourse around the world. Theoretical financial Kuznets curve suggests that the relationship between financial market development and income distribution inequality follows an inverted U-shaped pattern. However, current literature failed to support this hypothesis. The expansion of the financial market truly provides more relative opportunities for the poor which benefits the equalization. But those advantage opportunities are likely to be captured by some specific groups instead of all population. The majority literature on this academic field focus on developed countries with... cross-sectional and panel data analysis that providing controversial results. They emphasize the financial development as a consequence of economic growth without deep analysis of the financial market development as an independent entity in determining the inequality. This study proposes to use a more comprehensive and rigorous method to identify the direct relationship between financial market development and income distribution inequality in 10 most typical emerging markets. Both short-run and long-run impacts of financial market development on income distribution inequality are examined and defined by utilizing time-series data and error-correction modelling technique. By providing a better understanding of the relationship, the findings of the research would make contributions to financial market policy adjustments in developing countries.