Based on the comprehensive research on geological structure,tectonic motion strength,history strong earthquake activity,crustal shorten velocity and local stress field characters,the northern Xinijang region is divided into five tectonic regions,they are Altai seismic belt,Urumqi tectonic region,western segment of northern Tianshan mountain,central part of Tianshan mountain and eastern segment of Tianshan mountain.By calculating the mean value of strain energy release,converting magnitude,annual occurrence rate with different magnitudes,b value and parameter m of strain accelerating release model etc.,the seismicity state of each tectonic region are analyzed quantitatively,and the character index of activity state in every tectonic regions are obtained.It may offer the quantitative criteria for seismic trend analysis and judgment.