Abstract：The May 4th Movement is not only a great patriotic democratic movement, but also a profound thinking enlightenment. The Ninety years of research on the May 4^th Movement can be divided into four periods： the starting period （before 1949）, the development period （1950- 1966）, the prosperity period （from the end of the Cultural Revolution to the mid--1990s） and the expansion period （from the mid--1990s up to now）. During the ninety years, the May 4^th Movement has been approached from different aspects, which gives rise not only to academic achievement, but also to heated academic dispute that is rare in the research of modern Chinese history. Since the late 1980s, the focus of academic research has been shifted from treating it merely as political movement and cultural movement to macro-inspection of the social development of modem China, thus opening a new field of research and deepening the research in the field.
2009, Vol. 11 
