Abstract: Eastern Xinjiang as an aridest region of China is located at the boundary between the East Asian summer monsoon and the Northern Hemisphere's westerly winds. This region is sensitive to the environmental change in the large­scale westerly and monsoonal circulation systems. Some studies have indicated that Late Pleistocene climatic changes in this region were mostly influenced by expansion and contraction of the summer monsoonal circulation. However，this region might have experienced complex pattern of climate change neither a direct response to the westerlies nor to summer monsoon due to the interplay between the subtropical monsoon system and the mid­latitude westerlies. We present lithology and fossil pollen data from a sedimentary core CK­2 drilled from the Luobei Depression(40°47′N,91°03′E)，Lop­Nur in the Eastern Tarim Basin，Xinjiang，China. The paleoenvironmental and paleoclimatic evolution during the time of ca.32.0～9.1kaB.P.has been analyzed in this paper on basis of the pollen data from core CK­2.Our results reveal that during 31.98～19.26kaB.P.corresponding to Late Glacial Maximum(LGM)，the climate was characterized by cold and humid environment，and varied from cold­humid to warm­arid and fluctuated frequently with little amplitude. The vegetation was dominated by steppe­desert steppe in this area. Later，steppe­desert steppe landscape under cold­humid condition was replaced by desert vegetation under a generally warm­arid climate from ca.19.26kaB.P. to 13.67kaB.P. During the period from ca.13.67kaB.P. to 12.73kaB.P.，climate was comparatively cold and semi­humid and steppe­desert steppe prevailed over the area. And through the period from ca. 12.73kaB.P. to 9.14kaB.P.，climate was varied from cold­humid to warm­arid and fluctuated frequently with large amplitude. The vegetation was changed gradually from desert to steppe­desert steppe in this area. Three cold events in the periods of 16.45～15.39kaB.P.,14.27～13.67kaB.P.，and 11.74～11.23kaB.P.corresponded to the Oldest Dryas，Older Dryas and Younger Dryas events respectively，whereas the two warm periods between 15.39～14.27kaB.P.and 12.73～11.74kaB.P.corresponded to Boiling and Allerod events respectively. After the Younger Dryas event the temperature changed abruptly，and the climate changed from warm at ca.10.49kaB.P.to cold at and ca.9.14kaB.P., which were the notable characteristics during the early Holocene. Palaeoclimatic evolution and shift events in the Lop Nur region revealed by pollen assemblages and concentrations would be well parallel with the global changes.