We use simplified multiple aliquot regenerative-dose （SMAR） protocol from fine grain quartz （4-11 txm） to systematically dated samples of Hujiagang alluvial-pluvial platform stratum, which is located in Yingxian County, Shanxi Province. OSL signals of these samples dominated by fast component shows that they are suitable for OSL dating. Based on the optical ages obtained and the buried depth of these samples, the age depth curve and function were obtained for dated samples, the accumulation rate for this section is calculated using age-depth function. Deposition rate experienced four changes between 66.46ka and 33.62ka. The change of depositional rate consists with oxygen isotope variations recorded in Guliya ice core, which shows that the depositional rate was fast during cold period, or vice versa. 66.46ka ~ 60. 23ka was cold phase MIS4 and the deposition rate was 0. 6055m/ka; 60.23ka-47.15ka was mild phase MIS3e and the deposition rate was 0. 0382m/ka; 47.15ka-42.65ka was cold phase MIS3b and the deposition rate was 0. 4512 m/ka; 37.89ka-33.62ka was mild phase MIS3a and the deposition rate was 0. 1986m/ka. Based on the analysis above, climate change was the main factor for depositional rate changes between 66.46 and 33.62ka in the studied area.[著者文摘]