Abstract: Influenced by the wave of Post-modernism in 1980s, the social and cultural aspects of human body have been highlighted and human body has become an object that can be shaped and constructed. Meanwhile, under the assistance of modern medical science, the ratio of muscle and fat in human body within certain standards has become the core knowledge in human body expression. This tendency has been reinforced in the age of digital intelligence, and resulted in the interaction between human body and media and its digital expression, as well as the formation of a new view towards human body. This article takes the methods of "participant observation" and deep investigation in anthropology to discuss how human beings develop the expression mechanism of human body in the age of digital intelligence, and put the expression into practice. Besides, the construction of identity and the obtainment of experience in this process are expounded, which will be eventually crystalized as unique social memory.

Key words: concept of body, body practice, identity construction, experience obtainment, social memory, sports anthropology