The fundamental purpose of art education is to cultivate talents, with the goal of cultivating cross-century talents, using modern teaching methods, strengthening the teaching process and developing students' intelligence; Study teaching methods, based on scientific understanding, and cultivate students' excellent personality quality and ability; Vigorously carry out aesthetic practice activities to cultivate students' innovative spirit and ability. Junior high school students' art class should start with the teaching of sketch geometry, with the aim of letting students master the basic laws of modeling and lay a good foundation for future sketch learning.