Based on the perspective of the fusion of sports and medicine, the authors examined the current situation of teenager physical health in China, and put forward the following opinions: teenagers in China suffering from a chronic disease has become normality nowadays; the cognition of "Health First" guiding ideology is missing in school physical education; physical education and health curriculum contents lack of health elements in sports; physical education teachers lose their health discourse right. Based on the fusion of sports and medicine, the authors put forward the following development strategies: firmly stick to "Health First" guiding ideology, cultivate the new idea of sports promoting health; enhance physical education teachers’ health education ability; strengthen the cooperation between school medical department and physical education department, so that they jointly perfect the physical education and health curriculum system; etc.