Shandong inland waters belong to three main river systems, i.e. Yellow River, Huai River and Mai River. As known at present on the basis of previous and present surveus 115species and subspecies occur in Shandong and they belong to the Family cyprinidae or accounting for 60% of the total. Among the total 12 subfamilies of Cyprinidae, 10 subfamilies occur in , and hte subfamilies Labeoninae and Schizothoracinae are absent in Shandong. Among the 10 subfamilies, 9 subfamilies are the East Asia elements and 1 subfamilies (with only 1 relict species ) is the South Asia elements. The fish fauna of Shandong belongs to the East China (Plain) Region. Shandong is located in lower reaches of Yellow River (belonging to Wwangho-ZHaiho Subregion). The fishes of Cyprinidae are similar with that of Jiangsu which is located in the lower reaches of Yangtze River(belonging to Kiang Huai Subregion). Compared to that of Liao River (belonging to Liao River Subregion), excepts for a few cold water fishes, the fishes of Cyprinidae are also similar. the subregions are divided according to the elements of genera and species except for the Cyprinidae fishes.