Abstract:We analyze the 3-D deformation observed by GPS(1990~2015) and precise leveling (1980~2014) in Weihe basin. The results show the horizontal movement rates are 4.3~11.6 mm/a and the directions change in the vicinity of 107.8° and 110.5° E from SEE in western, to SE in central, and E in eastern basin. The vertical movement in more than 30 years shows priority to inherited movement at the rates -4.6~6.2 mm/a relative to ITRF2008. There are obvious differential movements between the basin and mountain, the different block in the basin. The Ordos block moves upward at a rate of 3 mm/a as a stable block within a differential rate of 1 mm/a. With respect to central Ordos, Weihe basin is undergoing subsidence at a rate of 5 mm/a, while at Qinling the subsidence rate is about 4 mm/a. The upward and downward movements present four quadrants: Xi ’an and Gushi sag, while Lishan and Xianyang uplift. The big differential movement and quake-hit area appear in the intersection of faults or blocks. The activities of the faults in the western and southern basin are stronger than those in the eastern and northern regions, based on the observations in the cross-faults. Based on the data of leveling profiles on a long timescale, the major activities of the Qishan-Mazhao, Qinling, Huashan and Weihe faults are normal slip. The rates are up to 5 mm/a in the central Weihe fault which is divided into Xi ’an sag and Xianyang uplift, while the slip rates of other faults are within 3 mm/a.