The multilateral cooperation among BRICS countries has gained a historic breakthrough in the afternoon of July 15th. ANBOUND think tank scholars observe that given the circumstances that the west has given up their responsibilities to the world economy, the emerging economies are saving themselves by conducting financial cooperation among BRICS countries, which serves as a complementary part to the international financial system dominated by the west. What the world needs to be concerned about is the investment return with the over-democratic New Development Bank of BRICS, which strengthens the needs for the BRICS countries to conduct broader and deeper cooperation among them. Through cooperation, return can be regained from the economic growth which is driven up by the low-efficient infrastructure investment.