The health level of children and adolescents is closely related to national development. By describing and analyzing the current situation of health risk behaviors of children and adolescents in Beijing，the main health problems and the intervention of common diseases and health influencing factors of students，this paper finds that children and adolescents in Beijing have unhealthy eating behavior，insufficient physical activity，too long video time The high rate of myopia and the obvious increase in the detection rate of overweight and obesity. In order to improve the health level of children and adolescents in Beijing，Beijing has carried out six actions with the theme of “smart children and sunshine youth health action”，such as the action of experts on campus，the action of popularizing school health standards，the activity of primary and secondary school students’ health month，the action of improving school teaching and living environment，the action of healthy parents and the action of caring for key groups.