School physical education is a way to teach students to exercise. Cultivating the habit of self-conscious exercise and students' consciousness of self-exercise is one of the important contents of school physical education, and it is also a learning process to cultivate and master the consciousness, habit and ability of lifelong physical exercise. In addition to technical teaching, teachers should pay attention to cultivating students' cognitive ability in classroom teaching, so that students can truly understand the significance, function and related theoretical knowledge of physical exercise. Attention should be paid to the cultivation of students' interest in sports, which is the greatest motivation for students to know and actively participate in certain sports activities. It is not only the intrinsic factor for students to learn physical education, but also the basis for students' individual ability development. Stimulating and cultivating students' interest in physical education can not only improve students' consciousness and enthusiasm in learning physical education, but also fully reflect the leading role of physical education teachers in teaching. With the in-depth development of lifelong sports and national fitness activities, the problem of cultivating sports interest is more prominent. In physical education teaching, we should constantly creatively use innovative and flexible teaching methods, change the organizational forms and means of physical education teaching, stimulate students' interest in sports, be good at discovering students' "bright spots", give play to their advantages and stimulate the initiative of exercise. Students at different levels also have different sports needs. Physical education teachers should adopt diversified sports competitions according to students' different characteristics and personal advantages, such as basketball, volleyball, football, tug-of-war, table tennis and skipping rope. Through diversified competitions inside and outside the school, students can gradually establish the sports concept of attaching importance to thought and taking the initiative in action, and cultivate lifelong sports consciousness.