Built upon a methodological assumption that conventional theory of democracy and party politics after some modifications can be applied to analysing the EU politics, this article offers a case study of the European Green Party (EGP) by focusing on its three aspects—political programme, organisational structure and political participation. As the main conclusion, the author argues that the EGP has evolved into a Euro-party by the end of the EP’s fifth term in terms of certain standards, yet its roles as a system-maker for the EU’s democratic transformation are still very limited.
