Mathematics is a process in which people qualitatively grasp and quantitatively describe the objective world, gradually abstract and generalize, form methods and theories, and widely apply them. Since the middle of the 20th century, great changes have taken place in mathematics itself, especially in the combination with computers, which has made mathematics expand in research fields, research methods and application scope. Mathematics can help people better explore the laws of the objective world, make appropriate choices and judgments on a large number of complex information in modern society, and also provide an effective and simple means for people to exchange information. Mathematics, as a universally applicable technology, helps people to collect, sort out and describe information, establish mathematical models, and then solve problems and directly create value for society.