In the context of the new curriculum reform, the focus of the basic curriculum reform is described as "teaching is the content of life, and learning is the way students live." The new curriculum reform proposes that the living of mathematics teaching can improve students' learning efficiency, cultivate their ability to learn and use, and stimulate their love for mathematics. This study is based on the theories of educators such as Dewey, Tao Xingzhi and Frei et al. Tal, based on the M school for case study, using the literature method, observation method and interview method, through the interviews with nine mathematics teachers and classroom observation, to understand the problems of living teaching in this school, this paper is divided into four parts except the preface, and puts forward corresponding countermeasures for living teaching.