The uplift of the Taihang Mountains in the late Cenozoic signals the primary formation of modern landforms in North China, but there are still many different opinions on its development. Paleontological evidence can play an essential role in the study of the uplift of the Taihang Mountains.Methods: The newly discovered Jingxing Hipparion fauna was excavated from the alluvial—fluvial fan on the Tangxian planation surface at the east piedmont of the Taihang Mountains, including Felidae gen. et sp. indet., Hyaenidae gen. et sp. indet., Dihoplus ringstroemi, Sivalhippus platyodus, Propotamochoerus sp., Chleuastochoerus sp., Schansitherium sp., Palaeotragus sp., Dorcadoryx sp., Gazella gaozhuangensis and G. cf. gaudryi. Results:The Hipparion fauna was discovered firstly in the east piedmont of the Taihang Mountains. Biochronological observation of this fauna implies an age of latest Miocene to earliest Pliocene (about 6.0~5.2 Ma) or late MN 13, correlated to Taoyang member of Gaozhuang Formation in the Yushe Basin of Shanxi Province. Conclusions:Since the fauna was excavated from the redclay on the Tangxian planation surface, it is concluded that the uplift of this surface was not earlier than Early Pliocene. Additionally, the fauna composition indicates an open forest and grassland environment which is entirely different from nowadays.