Abstract From the perspective of foreign water aid, the paper makes an in⁃depth analysis of America’s Asian strategic deployment and foreign policy implementation. Foreign aid is an essential constituent of a country’s foreign policy and an important measure for the implementation of foreign strategies. The U.S. is the world’s largest donor of foreign aid, and it searches for partners at home and abroad to influence the formulation of adaptive national strategies of recipient countries through the following “three pillars”. In terms of the recipient, the U.S. identifies priority countries to provide water aid according to its own strategic needs. As for content, the U.S. efforts in water aid are in line with the domestic development and social governance of Asia⁃Pacific countries. With assistance measure, continuous investment of capital, technology, and human resources are made. The U.S. water aid in the Asia⁃Pacific region is of great significance for China’s foreign water aid in the framework of the Belt and Road Initiative.