Abstract: The study on the landform evolution of Xianyang, Qin Capital, is an important problem not to be neglected in the archeology of Xianyang and the study on the historical environment evolution of Guanzhong Basin area. The landform evolution of Xianyang since the end of Qin Dynasty contains two aspects, the northward moving of the Weihe River bed and the changing of the edge slope of Xianyang tableland. With textual research on documents and on-the-spot investigation, this paper displays the different sites of the Weihe River bed from the end of the Qin Dynasty to the Tang Dynasty, the Ming Dynasty, and the Qing Dynasty. Since the end of the Qin Dynasty, the Weihe River bed in the reaches of Qin imperial capital area moved 4100 m toward north at an average moving speed of 1.8764 m/a. Before the Ming Dynasty the moving speed was comparatively slow, which was obviously accelerated afterwards. From Emperor Shunzhi of the Qing Dynasty to modern times, the speed of northward moving reached 5.9701 m/a. The numerous short gullies of the edge slope of Xianyang tableland took shape mainly after the end of the Qin Dynasty. The village platform on the edge slope of Xianyang tableland results from landform change caused by people in their cutting the original slope and digging their living caves.