The aim of this thesis is to mediate to the reader an image of Chinese classification systems and in what way the methods of classification have progressed during time. The tradition of classification in China is very old and dates back more than two thousand years, but it wasnt until the downfall of the dynastic era in the beginning of the 20th century, that Chinese libraries and methods of classification were modernized. This thesis also identifies the development of Chinese librarianship which is of old age since Chinese literature stretches three thousand years back. The main question is in what way the values of three different philosophies are reflected in five classification systems compiled between 1953-1975. The three philosophies are Daoism, Confucianism and Maoism/Mao Zedong Thought. The five classification systems are Library Classification of the Peoples University of China, Library Classification of the Chinese Academy of Sciences, Library Classification for Medium and Small Libraries, Library Classification of Wuhan University and Chinese Library Classification. The method used is an ideological analysis. It results in a statement that Maoism has been the most influential philosophy in the five classification systems, not only as visible for the eye in the outlines of the classification systems, but also as a guiding line during their compilation. Altogether, this thesis establishes that book classification according to ideological, philosophical and political views has been a tradition in China for as long as the tradition of book classification has existed.