Abstract: Section A at Jinniushan Archaeological Site was divided into eight layers. In i984, some fossil human bones were found at bottom of Layer VII .According to TL dating, the lower part of Layer YI is 188.4±15.1 ka, the upper part of Layer VII( is 197.0±7.0 ka, the lower part of Layer VII is 194.6±3.4 ka and the upper part of Layer VIII is 388.7±50.7 ka. The order of these figures is identical with the stratigraphic sequence. TL ages of the strata are concordant with mammalian fossils found in corresponding layers. It showed that accumulation was quickly and continually from Layer VI to Layer VII. However, between Layer VII and Layer VIII, there was a clear gap in accumulation. About 200 ka ago, the cave might be stable when Jinniushan Man lived.

Key words: TL dating; Archaeology; Jinniushan Man