Located at the northern part of the Hetao fault basin, Yinshan Mountains had uplift and Hetao basin subsided intermittenty since late Cenozoic. As an important geomorphology response to the tectonic, the river terraces developed well in this area. Based on a detailed field geological survey and the optically stimulated luminescence (OSL) dating, we designated 4~5 fluvial terraces in the transverse drainage of the western Yinshan mountains, and the terraces T4 through T1 experienced four intermittent aggradation stages during the periods of approximately 79.65~58.00, 51.61~46.25, 41.28~32.19, and 23.22~15079 ka BP respectively, and incision stages during the periods of 58.00~51.61, 46.25~41.28, 32.19~23.22, and 15.79 ka BP~the present, respectively. We also discussed the mechanism of the river terraces, which formed by the combined actions of climatic shifts and tectonic uplift. Tectonic uplift was a driving force for river downcutting, and the climate change was an important fact or influencing the aggradation of the terraces. And we analysed the uplift mode by the river incision rates: the Yinshan Mountains uplift higher in the middle section than the eastern and western section during the period of 58.00~41.28 ka BP, and after about 32.19 ka BP, the western Yinshan tended to up lifte overall with uplift difference decroased.