The Internet supervision by public opinion has the unique advantage of anti-corruption,but is subject to truth, contingency and tort. These problems are related to system causes, so constructing relevant system is very important for anti-corruption of Internet supervision by public opinion. From the perspective of users, self-discipline based on limited real-name system and heteronomy based on legal norms are equally important. From the perspective of the media, we should establish platform construction mechanism of Internet supervision by public opinion, monitoring and guiding mechanism of Internet public opinion, media cooperation and innovation mechanism. Looked from the government, we should focus on promoting information disclosure mechanism of the government, rapid reaction mechanism of public opinion, investigation and handling mechanism of the incident.