Abstract: This paper briefly reports a new Pliocene mammalian assemblage collected from Gaotege in central Nei Mongol (Inner Mongolia), China in 2000 and 2002. The Gaotege association consists of 46 taxa referred to 41 genera, 22 families and 7 orders, including small to large sized mammals. The fauna shows close resemblance to those of the Ertemte Fauna of latest Miocene, and the Bilike and Gaozhuang faunas of early Pliocene. However, certain faunal components suggest that it is younger than the Ertemte and Bilike faunas, but somewhat older than the Gaozhuang assemblage of the upper part. It seems likely that the Gaotege association represents a new fauna in the Chinese Neogene mammal sequence, with an age of late early Pliocene (early Yushean, correlated, in European terms, with early Ruscinian or equivalent to MN15a). The Gaotege Fauna reflects a predominantly temperate steppe habitat, with local shrub and freshwater bodies, similar to the Ertemte and Bilike faunas. Faunal changes from Ertemte to Gaotege seem to reflect an environment gradually changing to drier and more grassland conditions.