Global financial governance refers to the way in which global financial affairs are managed. As there is no global government, global financial governance typically involves a range of actors including states, as well as regional and international organizations aimed at negotiating responses to problems that affect more than one state or region, far from only providing the public good of financial stability through global economy integration and global financial legislation. In geopolitical context of the 21st century, emerging economies still have maintained a low profile in global financial governance, despite their growing economic power and the rhetoric of being a responsible great power, and there is little evidence that they will seek international leadership. Moreover, compared to the other emerging powers in the BRICS (Brazil, Russia, India, China and South Africa) group, China has under-participated in global governance in terms of contributing personnel, finance and ideas to major multilateral institutions and programs. It is really an interesting question in international economics and politics area. Firstly, this paper examines comparative data on the emerging economies countries’ participation in global financial governance and explains the reason why China has relatively low involvement in global financial governance. Secondly, this paper analyzes norms and legitimacy in global financial governance, and thus outlines the emerging economies constraints on public policy of global financial market integration in the light of the foregoing analysis of legitimacy, accountability and democracy. Finally, some global financial governance development strategy and possible policy solutions are discussed as well.