Abstract: The COVID-19 outbreak is followed by epidemic prevention and control, with the assistance of information technology. This paper investigates and analyzes the innovative applications of artificial intelligence, robots, big data, blockchain and other information technologies in the epidemic prevention and control of China, and discusses the corresponding measures taken by international communities (the United States, Canada, South Korea, Israel and Singapore) to use information technology to combat COVID-19, so as to encourage all parties using information technology to fully support the epidemic work of early warning, surveillance, prevention, and social governance. In view of the problems with application, it is recommended to strengthen the application of early warning technology for outbreaks, establish an efficient and multi-directional information exchange and sharing system, objectively understand the effectiveness of information technology, accelerate the development of collaborative robot technology, and deepen the application of information technology.

Key words: Information Technology, COVID-19 Prevention and Control, Artificial Intelligence, Robot, Big Data, Blockchain