It has been sixty years since the excavation at the Dingcun sites in 1954. The excavation and study of the Dingcun site can, it is appropriate to say, be called the second milestone in Chinese Paleolithic archaeology, following the discovery of Zhoukoudian. Its important position in Chinese Paleolithic archaeology can be summarized in the following aspects: Dingcun is the largest Paleolithic sites discovered after the Peking Man Site and the establishment of the PRC; Dingcun is a complex of open air sites found in North China, different from the cave sites at Zhoukoudian; the characteristics of its lithic industry is very different from Zhoukoudian; Dingcun belongs to the cultural remains of archaic Homo sapiens, between Homo erectus and modern humans in terms of the development of the Paleolithic culture; the site has been excavated and analyzed independently by the Chinese scholars uninterruptedly over the past sixty years. Therefore, research at the Dingcun sites reflects the characteristics and development of Chinese Paleolithic archaeology.