Xinjiang and its neighboring regions are situated in Central Asia, is the largest arid areas of Eurasia, ecological environment is complex.Ecological communities and geographic distribution patterns of amphibians and reptiles in this area have important significance for the understanding of the geographical distribution and zoogeographical divisions in the region.Based on the distribution data of 128 species, in 75 geographical units, we made systematic cluster analysis and identified five major chorotypes in species clustering map.We get eco-geographic R cluster based on 38 ecological factors matrices for 75 geographic units.Discriminant analysis found that the ecological factors associated with temperature and precipitations are the key factors affecting the distribution pattern of five chorotypes.The correct rate of discriminant function of ecological factors determining certain distribution pattern is not very high, indicating that the distribution of amphibians and reptiles within the study area are dominated by geographical factors.Senior geographical (region-level) units correspond directly to primary chorotype (except widespread type).For lower zoogeographical unit, there is several chorotype distributed in the same province or a chorotype existed in the several neighboring provinces, but usually only one dominant chorotype distributed in each province.The correspondence between secondary chorotype and provincial unit with many endemic species is clearer.On a large scale, geographical factors dominate the chorotypes and zoogeographical division but in small-scale, ecological factors also have a negligible effect.Therefore, the chorotypes and zoogeographical division of amphibians and reptiles reflect temporal evolution of animals and modern ecological geographical distribution.