The research of sequence and age aboat Kaidu River terrace has always been in a low degree, which is of great significance to revel the tectonic uplift of the Tianshan mountains.According to the detailed field work, Kaidu River Basin developed 7 river terrace that mainly of accumulational terrace. The test results from 10 typical ESR samples which are collected in Kaidu River basin show that the formation time of river terraces is between (3.60.3)~(653.765) ka.The comparison of Manasi River terraces in the northern piedmont Tianshan Mountains indicate that the erosion of both two rivers is widespread during the Middle Pleistocene to Holocene epoch.The results which calculated by linear regression combine with the altitude of river terraces shows that the incision rate of Kaidu River is averaged as 0.101 m/ka. This results could constrain the uplifting rate of the Tianshan Mountains during the neotectonic period.A lot of studies indicate that Kaidu River terraces are controlled by tectonic uplift and climate change.The geologic agent of the erosion of the river originates from the overall uplift of the crust.