Abstract
We aimed to develop a robot's use and considered the possibility of the robot as media. That is, we treated a robot from the viewpoint of a media theory and clarified a robot's structure and character as media. First, we investigated a robot and media and made structure model of information processing. As the result, Information processing of a robot was divided into the upper layer and a lower layer. The upper information processing could be compared with information processing of media. Information processing of media had two types. The two are (1) Single function type and (2) Compound function type. Then character of the robot as media was "High Definition" and "Low Participation."