Abstract: The recent years have witnessed the physical health problems of teenage children in China. The government has taken a variety of measures to curb the problems. But the fundamental change of the situation is still faced with great challenges because of multiple social environmental factors. On the basis of the theory of health promotion of the ecological system, this study, based on the related researches at home and abroad, analyzes the social environment factors influencing young children’s physical health of in China and suggests some measure to combat the concerning problems.

Key words: teenagers, physical health, social supporting environment