Abstract: New materials of Sinohippus from the Late Miocene"Hipparion Red Clay"of Gansu and Nei Mongol, China, are described and identified as Sinohippus robustus sp. nov.A review of the known specimens of Sinohippus indicates that this genus is generically distinct from other members of Anchitheriinae. The sympatry of the low-crowned Sinohippus with the high-crowned Hipparion indicates that there should have been a small quantity of shrub distributed during the Late Miocene in northern China.