According to The evolution of the world and passing the intelligence community and Entering the age of wisdom society, increasing media literacy has a main role in the realm of knowledge society. In Knowledge Society, citizens require to adopt with permanent and lifelong education. In this manner, except of teachers, other actors have entered the training field. So Pay attention to role of these actors is more important for Promoting media literacy. On the other hand, EU countries are leading countries in the promotion of media literacy. Therefore, studying the activities of these countries can provide good experience and knowledge to our country and future plans. In this paper, using a documentary and library method and by reviewing the subject literature, documents, articles and guidelines for media literacy education that The EU Commission has been notified to 28 EU countries, The elements of media literacy, actors in this field and their role were examined. In this context, the ideas of the Ilka Tomi-based knowledge society and the James Potter media literacy theory were used. The results of these studies show that various actors include children and youth, parents, private teachers, officials and educational planners, teachers and formal trainers, students, media officials, companies, professionals, associations and citizens engaged in media literacy education. If the interact between these actors are balance, education and learning amongst all strata of the society are exist, and the conditions for creating a knowledge-based society are becoming more and more possible.