Against the backdrop of the global financial crisis，Latin American and the Caribbean countries took actions to adjust their foreign relations. As a result of the decline of the U. S. hegemony，the Obama government had to cut foreign aid to and restrict trade cooperation with regional countries. The negotiations between the United States and them over immigration and FTA issues fell into stagnation. But the United States made an effort to increase its military presence in the region and sought to expand its influence over non-conventional issues. Based on recent economic developments，Latin America sought to play an increasing role in the world arena. By developing relations and cooperation with the European Union，Russia，the Asia-Pacific and Middle East countries，it was constructing a more diversified diplomatic pattern.