Abstract: Body image is of great importance to individual’s development, which has been studied for more than 20 years. Based on Bronfenbrenner’s ecology system theory, from four facets, including microsystem (parents, peers, romantic partners), exosystem(media), macrosystem (social culture)and individuals who locate at the center of the system, this article concludes the factors that influence the body image and provides some reference for the body image interventions.

Key words: body image, ecology system, peers influence, internalization, social comparison