In April 2005, waves of anti-Japan protest swept China and South Korea. In China, hundreds of thousands of people took to the streets in more than 40 cities to protest against Japan over its irresponsible attitude toward the history of colonial rule and war crimes of 60 years ago. Despite the protest having a strong ground and its action being generally non-violent and peaceful, it was then severely condemned by many Western critics and media as chauvinistic and irrational, and as being manipulated by the Chinese government to legitimize its rule. Against such a notion, this essay attempts to work with China’s ‘popular nationalism’ (renmin minzu zhuyi), and considers its space as an autonomous political domain that is independent of the state nationalism. The ‘cyber-nationalism’ (wanglu minzu zhuyi), this paper argues, not only challenges the state monopoly over domestic nationalist discursive production, but also opens up new possibilities for performing common people’s ‘public discursive right’ (gonggong huayu quanli). Far from being a homogeneous unity, the online campaign is characterized by free exchange of information and lively debate over the boycott strategy.