After the 2008 financial crisis，countries around the world have become more and more aware of the importance of preventing systemic financial risks. Therefore，while focusing on micro-prudence，financial regulatory authorities in various countries have also begun to emphasize the construction of macro-prudential management frameworks. With the development of world economic and financial integration，countries are more closely linked，and the implementation of policies in one country may have an impact on other countries，that is，policy spillover effects. At this time，the international coordination of policies is particularly important. At present，the international coordination of macroprudential policies has not received enough attention. This paper mainly analyzes the international spillover effects of macroprudential policies，introduces the existing ways and problems of international coordination of macroprudential policies，and provides policy suggestions for improving the international coordination of macroprudential policies and maintaining the stability of the world financial market.