In this report, I took a viewpoint of the "participatory culture" of Henry Jenkins (2009) into account and argued what the literacy of the digital media. I clarified what kind of culture "participatory culture" is and what one participated with how. The support system between peers in the "participatory culture", have the community which can feel relieved where the system letting each other take an equal viewpoint. I made clear that it was a problem of the media literacy education how to build this system. It is inseparable from letting learners understand an ethical model. The thought about "beta reading" Jenkins argues may give the viewpoint us what necessary for the guidance. I am sure that Media literacy education in perspective of Theory of "Participatory Culture" supplements the argument in Japanese education which using digital media make the communication activates lively or learning actively, and reinforces the fundamental part.