Abstract:Earthquake occurred on May 12,2008 in Wenchuan,Sichuan Province,with magnitude of 8.0 and epicenter intensity of XI,causing serious damage to the structures on ground. The dam height of Zipingpu concrete faced rockfill dam(CFRD) is 156 m and it is 17 km from Wenchuan earthquake epicenter,which is the largest high dam reservoir project and the nearest from earthquake epicenter in the earthquake area. Deformations and damages occurred due to the earthquake,attracting attentions from both academic and engineering fields. Detailed description and analysis are presented for damage due to deformations of dam embankment and concrete slabs based on macroscopic deformation phenomena after earthquake and deformation monitoring data. The comprehensive analysis results indicate that dam deformations are mainly settlement,and horizontal displacement is relatively small. Dam body is in the conditions of contraction and compaction. The maximum settlement occurs at dam crest,valuing 900–1 000 mm;and the ratio of the settlement to dam height is around 0.6%. No evident damages occurs in dam body and downstream slope;and structural function of dam is not seriously affected by the earthquake.