In this article, we reconstructed the temperature sequence for adout 200 years in the growing season of populus euphratica at Shaya meteorological station by the populus euphratica chronologies in the area of middle reaches of Talimu river.Its representativeness to many meteorological stations in the river basin of Talimu river was analysized. This temperature sequence was compared with Northern Hemisphere average temperatures We think it can be regarded as a reference evidence of warm and cold changes in recent hundred years in the area of the middle reaches of Talimu river.