Abstract: Weber’s thought on political party is an important part of his political social theory. Weber recognizes that political parties have the characteristics of recruiting members freely. To analyze the social basis of political parties can have an important influence on the development of political sociology. Weber confirmed the rationality of the existence of political parties in the modern countries and analyzed the phenomenon of organizational bureaucracy among political parties. The bureaucratization of political party organizations is a trend in modern society; mass democracy can bring heavy impact on the activities of political parties. Mass democracy has led to the emergence and development of bureaucratization of political parties, yet political parties have contributed to the development of mass democracy; the development of political parties and the development of mass democracy is a two-way pattern of development. Weber’s research on political parties has a grand vision, with a strong empirical color and other features. The enlightenment for the construction of contemporary China’s political party given by Weber’s thought on political party is that the development of China’s national form of democracy can be promoted through the development of inner-party democracy and strengthening the Party’s organizational construction.

Key words: Weber’s thought on political party; democracy; bureaucracy