Abstract:GPS data of Crustal Movement Observation Network of China 1999-2013,data of Continental Tectonic Environment Monitoring Network of China and other published GPS results were used to calculate a more complete horizontal velocity field covering the Tianshan mountain.Present crustal shortening rates and its spatial variation were analyzed using 5 GPS profiles across the NorthernPamir Thrust Zone,Kepingtage FoldandThrust Belt,Kuche FoldandThrust Belt,Manas FoldandThrust Belt and Turpan FoldandThrust Belt,respectively.Preliminary results demonstrate that the current shortening rates across the entire Tianshan mountain decrease from west to east with nonlinear features,and the current shortening rates in these profiles are about 26 mm/a,20 mm/a,12 mm/a,9 mm/a and 4 mm/a,respectively.