Based on the perspective of media ecology，this study takes cultural actors as intermediary factors to analyze how media bias shape cultural actors in three dimensions：concept，behavior and social relations. The research finds that there are three media bias of Internet，include time-space duality，multi-sensory shallow involvement bias，scene fusion-partition duality. In the media ecology，the concepts of cultural actors are metaphorically shaped，with the characteristics of non-linearity，integration，sensibility and divergence；the “middle-region behavior” which takes into account both virtual and real situations emerges；the social relations are communalized，seeking identity and emotional resonance.