Mathematics course in senior high school is a main course in ordinary senior high schools after compulsory education, which contains the most basic content of mathematics and is the basic course to cultivate citizens' quality. Mathematics curriculum in senior high school plays a fundamental role in understanding the relationship between mathematics and nature, between mathematics and human society, and its scientific and cultural value, improving the ability to ask, analyze and solve problems, forming rational thinking, and developing intelligence and innovative consciousness. Mathematics curriculum in senior high school helps students to understand the application value of mathematics, enhance their application consciousness and form their ability to solve simple practical problems. Mathematics curriculum in senior high school is the basis of studying physics, chemistry, technology and continuing education in senior high school. At the same time, laying a foundation for students' lifelong development and forming a scientific world outlook and values are of great significance to improving the quality of the whole nation.