Based on 13 OSL (optical stimulated luminescence) dating results, accumulation rate, grain size and TOC (total organic content) in Zeketai loess section in central Asia, an environmental evolution record during the Last Glacial Period was reconstructed. The results indicate that: (1) the climatic change in Ili basin during the last glacial period can be divided into 4 stages, i.e. cold stage (74.5~60 ka), mild moist stage (60~30 ka), cold stage (30~11.5 ka) and warm wet stage (11.5 ka~), and the climatic changing characteristics are consistent with marine oxygen isotope records; (2) since the beginning of Last Glacial Period, the loess accumulation rates presented a decreasing trend and are 49 cm?ka -1 in MIS4 stage, 32 cm?ka -1 in MIS3 stage, 13 cm?ka-1 in MIS2 stage and 8 cm?ka-1, respectively; (3) comparing between ZKT loess environmental records and the oxygen isotope records in GRIP ice core, we found that the signals of rapid climatic fluctuation from north Atlantic region are clearly recorded in ZKT loess records synchronously.