Now more and more attention is paid to students' health, so more and more attention is paid to physical exercise. However, when we face the health of students, the situation is worrying. What is the reason? I think there are mainly the following points: 1. According to the survey, parents are more concerned about their children's physique, study, life and psychology, but some parents care too much and spoil their children. Parents are generally most concerned about their children's health, but they don't pay attention to the relationship between body and nutrition, which leads to the decline of physical quality. Some parents also think that physical activity will hinder or reduce the quantity or quality of physical exercise. Most students not only have homework assigned by teachers, but also homework assigned by parents. They attend this training class and that remedial class, resulting in students having no time to exercise, declining physical fitness, forming a vicious circle, unable to participate in sports or having no time to participate in sports activities. 3. There are many problems in the dietary nutrition intake of primary and middle school students in China, and the students' physique is worrying. 4. Because the school strives for safety, it is afraid to do some heavy exercise. Most people only pursue students' achievements in Chinese, mathematics and English, and pay little attention to physical education and students' health. In order to make students' body shape and physical quality meet the requirements of three aspects, we should implement the National Physical Training Standard in teaching and vigorously popularize the Physical Health Evaluation Standard for Primary and Secondary School Students, so that parents and schools can pay full attention to students' physical condition and take measures to promote their normal development and enhance their physical quality, so as to make students become useful talents in 2 1 century. 1. In physical education classroom teaching, it is of great significance to cultivate students' sports interests and hobbies, develop physical exercise habits and good exercise habits, improve classroom teaching effect, cultivate students' lifelong sports ability and promote the healthy development of students' body and mind. Physical education teachers should pay attention to cultivating students' good exercise habits in classroom teaching. Make full use of various physical education teaching methods and gradually cultivate students' good habits of self-exercise. Second, to strengthen students' awareness of physical fitness, we must cultivate students' interest in learning sports activities. In teaching, we must first master the classroom rhythm and mobilize the classroom atmosphere. If we only pay attention to the preparation of motor skills and ignore the research of teaching art, and only pay attention to "teaching" and ignore students' "acceptance", it will be difficult to mobilize students' enthusiasm for learning. Therefore, PE teachers are required to carefully design teaching plans in the teaching process, and the teaching methods are more novel and changeable. Only when students are interested in sports will they find their own shortcomings, and they will exercise consciously under the guidance of teachers to make up for their own shortcomings. Third, by ensuring physical exercise activities within a certain period of time every day, fully arouse the enthusiasm of children, teachers lead students to do some interesting sports, and really let students move. In primary school, through school sports activities, students can develop and improve their body shape and physical quality while learning culture. As a physical education teacher, this work should be given due attention. Sports health education should be a kind of formative education in essence. Cultivating education is a long-term, extensive and subtle comprehensive education, and families have unique advantages in cultivating education. This requires the effective guidance of schools, families and society to bring a healthy and sunny future to the majority of young people.