Humanistic spirit is the embodiment of people's comprehensive quality, and mathematics teaching occupies a large proportion in primary school students' learning tasks. The ideas, contents and problem-solving methods of mathematics are related to humanistic education everywhere. Therefore, school mathematics teaching should infiltrate humanistic education, strengthen the educational function of mathematics, form a people-oriented concept of mathematics education, enable students to develop in an all-round way, enrich classroom content, and guide students to establish correct values and outlook on life, which is not only to cultivate their knowledge in textbooks.