Tectonic deformation research of the NE Tibetan Plateau is a good approach in understanding the Tibetan Plateau's uplift,mechanism, Indian—Eurasian collision influence. The Qaidam basin is the closed inland basin in the NE Tibetan Plateau. It is surrounded by the Kunlun fault belt(the southern boundary), the Altyn fault belt(the western boundary), the Qilian fault belt(the northern boundary), the Wenquan fault belt(the eastern boundary) and contains possibly thickest(about 12 km)continuous sequence of Cenozoic sedimentary rocks.The sequence contains considerable information on the history of Tibetan uplift.Here we report a highresolution paleomagnetic and tectonic rotation study of the well exposed 3237m Naoge section in the northeastern Qaidam Basin,where we found a 9.7°±7.4 °clockwise tectonic rotation from 20.1Ma to 15.1Ma, a 6.4°±4.4 °clockwise tectonic rotation from 15.1Ma to 8.2Ma, a 16°±7.5 °counterclockwise tectonic rotation after 8.2Ma. Two times of the clockwise tectonic rotation because of the Altyn Tagh sinistral shear strain propagated to Qaidam Basin,they are representative of the Qaidam block's rotation. A counterclockwise tectonic rotation because of the rightlateral strikeslip displacement of the Wenquan fault，it representative of the Naoge area’s rotation,and it showed that the beginning time of the NNW strike rightlateral Wenquan fault which is controled by the leftlateral strikeslip EastKunlun fault ,the leftlateral strikeslip Altyn Tagh fault and the leftlateral strikeslip Qilian fault was about at 8 Ma.