In Xunzi's ideological system, " Separate " is an important theory category and the center construction.The concept of Xunzi in his book, first proposed the " Separate ", and the "Separate "in a large number of text analysis, pointed out that"Separate"organizers, implementation is "Prince", "Saint" and "country", "points" in compliance with the principle of "Li" deep, reveals the " Separate "of the harmonious relationship between ancient Chinese society reached a function: the realization of group solidarity, harmony; management of rulers of national politics; to promote the diversity of social division of labor, optimizing the internal resource industry, to promote the whole social economic harmonious development; to maintain social stability and the well-being of the country.