Artificial intelligence technology is a new technological engine of a new round of science and technology and industrial revolution. After more than 60 years of development, it has gradually moved from technology to application, and will soon become a modern science that changes human economy and society. At present, the most popular branch technology of artificial intelligence is deep learning. Starting from the research content and application fields of artificial intelligence, this paper summarizes the basic model of artificial intelligence – neuron model, and then discusses the main application fields of artificial intelligence. In the field of transportation, the current research scope is wide, and the research depth is deep in the field of unmanned driving technology. Through sensing, decision-making, mapping and vehicle networking technologies, autonomous driving realizes fully autonomous driving of vehicles, providing significant technical support for improving the efficiency of transportation and ensuring safety.