Information on the Early Holocene palaeoclimate in Bosten lake in the northern part of Tarim Basin(southern Xinjian)is studied from a 953 cm long core taken from Bosten lake.Multi-proxy analysis of core BSTC2000,including the mineralogical components of carbonate minerals,carbonate content,stable isotopic compositions of carbonate,Ca/1000Sr,TOC,C/N and C/S of organic matters,combined with the pollen data from a section near BSTC2000 core,is used to reconstruct the climatic change since 8500 a BP The chronology is provided by 9 AMS 14C dates done on leaf,seed,or organic matter from two parallel cores.Climate was cold and wet during 8500 to 8100 a BP,it was a shallow river-lakeshore facies and 3 peat sediment interlayers.Temperature increased from 8100 to 6400 a BP and lake expanded,the climate was warm and humid,it was a highest lake level period.Lake level decreased a little in the cold period from 6400 to 5100 a BP.During the late of Mid-Holocene,it was a highest temperature and dry climate from 5100 to 3100 a BP,but there was a short-time cold period during 4400 to 3800 a BP,a mount of ice and snow melting water supplied lake at the early time and made the lake level increased.It was the second high lake level period during 5200~3800 a BP.The cool and wet climate during 3100 to 2200 a BP and lake level expanded with the evaporation decreasing,the lake had the last short-time high level during 3100 to 2800 a BP.After this short-time high lake level period,lake shrank as the long time lower temperature and reducing supplying water.From 2200 to 1200 a BP,it was a high temperature and dry climate,and lake shrank.Although from 1200 a BP to the present,the temperature decreased a little but it was a warm and dry climate.Lake level rose a little again,but it did not get to the bed's altitude of Kongque River that was a outflow river of Bosten lake.