There is one unit of Neoproterozoic glacial sediment-Talisayi Formation outcrops in Guozigou area, which is located in the north of Ili and south of Sailimu Lake. LA-ICP-MS U-Pb dating works of detrital zircon were carried out in order to identify the glaciation age and the Precambrian geological evolution. Several younger ages are 620~610 Ma and 580~572 Ma, which indicates the glaciation happened in Ediacaran period, and contained two glacial cycles. The Talisayi Formation correlated with Hangelchaok diamictites in Quruqtagh area. There is no age from 1000 Ma to 700 Ma recorded in detrital zircons, but lots of ages from 650~600 Ma. The ages suggest that the provenance of the glacigenic sediments was from the south of Yili. The tectonic events during 650~600 Ma correlated with the ending of breakup from Tarim and the beginning of assemblage to Kazakhstan.