Nowadays, the world sees rapid development of internet technology and virtual existence of cyber space, which provides platforms for massive users to share benefts and political views, leading to the generalization of political phenomenon online. Changes of the participant subject in cyber space, update of information dissemination means and blind choices of the participant object all challenge the flow of mainstream ideology. To reinforce the communication of mainstream ideology in the context of politicized internet, we need to start with developing online propaganda platforms, bringing innovation to present communication means, taking over the power of discourse and promoting the role of ideological and political education.