Abstract: Dongfang Square is situated in Wangfujin area of Beijing. Under the ground lever there is an upper sand layer of river at 10.5m and a lower sand layer of river at 12m. Some fossils, stone artifacts or ashes were found in the layers while digging bases for some buildings. The upper layer age is 15 to 19ka B.P. and the lower layer age is 22 to 26ka B.P. with thermoluminescence dating.

Key words: Dongfang Square, archaeology, thermoluminescence dating

摘要： 东方广场位于北京王府井地区。施工开挖中发现，在埋深大约10.5m和12m处分别有2层河流砂层，含化石、石器、灰烬等物。经热释光断代方法测定，上层约为距今1.5至1.9万年，下层约为距今2.2至2.6万年。

关键词: 东方广场, 考古, 热释光断代