Accurate diagnosis of novel coronavirus pneumonia has become one of the hot issues in the field of global public health. Artificial intelligence technology has played an important role in the auxiliary diagnosis of new coronary pneumonia. This paper firstly introduces artificial intelligence systematically and focuses on the development process of artificial intelligence. Secondly, the auxiliary diagnosis methods of COVID-19 based on robots and machine vision are systematically and hierarchically reported, and the classic artificial intelligence technologies are selected to compare and analyze the auxiliary diagnosis effect. In addition, this paper further introduces the auxiliary diagnosis method based on expert system. Finally, the development direction and trend of artificial intelligence technology in clinical auxiliary diagnosis are prospected.