The recent debates on the impact of globalization upon the nation-state increase among political scientists in the past decade. However, there still lacks systematic investigation on the relation between globalization and democracy. This article aims to fulfill this theoretical gap. Firstly, democracy is analyzed as three forms: liberal, social democratic and deliberative democracy. Given the different forms, the development of modern democracy is based on the territorial-bounded nation-state. The impact of globalization on democracy is channeled via the nation-state.