Abstract: This paper gets the article number on urban through searching the name of urban in articles’ title in CNKI database（www.cnki.net）. Whether or not urban hierarchical system based on numbers of articles comfort’s to Zipf’s law is studied. The basic conclusion is that China's urban literature hierarchy system is in line with Zipf’s law. There are four conclusions in detail in this paper. First, China’s urban hierarchical system presents a lower degree of primate city because the gap of papers’ number on Shanghai and Beijing is very small. The three cities “Beijing Shanghai and Guangzhou” are in two completely different hierarchies. Second, the q of Zipf is small and it suggests that the urban study dispersed over different size cities. Third, the q of Zipf from 2000 to 2012 as a whole presents the declining trend and it suggests that the dispersion degree of scholars’ studies on urban is higher and higher. Fourth, the hierarchical of China's urban literature presents from pyramid to spinning cone structure evolution, and the number of medium-sized cities is increasing.