Classroom teaching structure refers to the organizational links or teaching steps of classroom teaching. How to design a scientific and reasonable classroom teaching structure is an important aspect to improve classroom teaching effect. The more reasonable the teaching design, the better the integrity of teaching elements. I think the structure of instructional design includes the following aspects. 1, target structure. The goal is the concretization of teaching syllabus, which is the specific requirement of knowledge elements and ability training contained in teaching materials. Physical education teachers must thoroughly understand the contents of the syllabus, grasp the important and difficult points, and carry out targeted teaching purposefully. 2. Content structure. The teaching content strives to achieve a lot of cultural knowledge in a short time, develop students' ability and make students' development meet the requirements of society. Teachers should fully understand students' physical quality, and carefully work out practical teaching plans according to specific conditions and students' characteristics. 3. Teaching method structure. "Teaching has teaching method, but teaching has no fixed method". What kind of teaching methods teachers choose must conform to the teaching practice, so that the teaching process can be perfectly combined with teaching methods such as teaching content, students' reality, venues and equipment. Teaching methods strive to embody the principles of inspiration, vividness, autonomy and teaching students in accordance with their aptitude. 4. Time structure. Teachers must have a strong sense of time, reasonably arrange the time allocation of each teaching link, master the appropriate teaching rhythm, mobilize students' various organs to participate in learning, and strive for the initiative of teaching. 5. Train the feedback structure. Through in-class and out-of-class training feedback, the correct technical actions are constantly strengthened and applied to technical practice under the guidance of teachers. In teaching competitions, teachers often evaluate and evaluate students' technical movements and practicality. For students who make mistakes in feedback or do not master enough technical actions, analyze the reasons to help students re-establish correct technical concepts, consolidate their skills in repeated exercises and improve the effectiveness of exercises. In physical education classroom teaching, we must pay attention to the organic combination of various elements of classroom teaching structure, design the best structure, realize the self-improvement of physical education teaching and obtain the best teaching effect.