On the basis of combing the results of the overall PNT planning document of the United States, the research background, vision and strategy of the PNT architecture of the United States is analyzed and summarized, three PNT architectures: evolutionary architecture, original architecture and target architecture is described, and the view, strategy and guiding principles of the target PNT architecture is focused on, It can provide an important reference for the research and construction of national PNT architecture in China.