Human bodies work as important media for communication between humans and between humans and machines. Especially nonverbal messages by means of the human body convey more information than verbal ones, and besides, they have functions to control dialogues. Computer graphics (CG) representation of human bodies are, therefore, indispensable in order to make network - mediated communication and communication with computers natural to participants. In this paper types of CG representation of the human body is classified into four categories; 1) precise representation of human body shape,2) human body representation as communication media,3) human body representation as feedback information for human interface, and 4) multivariate data repersentation using human body appearance. The former three types are described by using examples.