Abstract: Space geodesy provides an efficient technique to determine contemporary crustal deformations.At present,GPS is one of the best methods to study the crustal movements in the Qinghai Tibet plateau.Two GPS campaigns were carried out in this area in 1993 and 1995 by Wuhan Technical University of Surveying and Mapping.The GPS measurements show that the Qinghai Tibet plateau moves at about 33.4mm/a to Siberia northeastward at present,which is in agreement with the kinematic model derived from geological evidence.It can also be deduced that the motion rate and azimuth of Bayan Har terrane,Qiangtang block,Lhasa Gangdise block and Himalayan block are about 17.3mm/a,N35°E;25.7mm/a,N33°E;38.9mm/a,N29°E;46.0mm/,N27°E relative to Siberian block(Siberia) respectively.