Patent map refers to revealing and analyzing all kinds of patent information in a visual and intuitive way after collecting and processing patent information, so as to better understand the complicated data information, make scientific decisions on this basis, and construct targeted patent strategies and tactics. It is a battle map in the competition based on science and technology at different levels and from different angles. As one of the means of patent management, patent map originated in Japan. With the extensive and effective application in Japan, patent map technology has also been introduced to South Korea, Singapore, the United States, and Taiwan Province and other places in China. Perhaps because its main purpose and function is to guide the development of applied science and technology, from a global perspective, the application of patent maps in Asian countries is higher than that in Europe and the United States.