The goals of AI doctoral training in the United States include three aspects: cultivating future AI leaders, providing the society with a group of talents capable of solving major problems, and maintaining AI status of the United States as the world leader. The cultivation paths are as follows: building a unique core curriculum system, selecting subjects with important social influence for re? search training, strengthening the interdisciplinary training of “AI + ”, enhancing its comprehensive professional quality, and jointly constructing growth incentive mechanism. And the United States has achieved remarkable results: its cultivation scale and quality are the top in the world, forming a set of unique training mechanism, and laying the foundation for the United States to become the world AI leader. It can be concluded that the training of AI doctoral students is a systematic project that requires the cooperation of the gov? ernment, universities and society, the core knowledge system and high - level scientific research ability are the core of the training of high - quality AI doctoral students, and interdisciplinary comprehensive literacy is crucial to the training of AI leading talents.