This article focuses on two related questions: first, is there a positive relationship between people's sense of citizenship and their attitudes to referendum? If so, the follow-up question is whether the observed relationship is determined by the blue-green partisanship, given that the elites and the mass public are severely divided between the two main political camps. The latter question is raised to assess the quality of democracy in Taiwan. Analysis of survey data indicates that the sense of citizenship does have impact on the attitudes toword referendum, and that the blue-green partisanship has only partial impact on the sense of citizenship. These are positive messages with regard to the quality of democracy in Taiwan. However, it is also revealed that the relationship between sense of citizenship and attitudes to referendum is mediated by the blue-green partisanship. Consequently, whether the referendum could be an appropriate method to solve the conflicts in this divided society, as the advocates have claimed, is in doubt.