[1] In 1929, Chinese prehistoric archaeologist and paleontologist Professor Pei Wenzhong discovered the skull fossil of the "Peking Man" 500,000 years ago at the Zhoukoudian site in Beijing.

In order to prove their theoretical inference, Jia Lanpo, Wang Jian and others analyzed from the aspects of paleogeography and paleoclimate, and began to search for human remains in the Nihewan stratum.

[6] The Xihoudu site is located on the sunny slope of Zhongtiao Mountain in the northwest corner of Ruicheng County in the south of Shanxi Province, in the middle reaches of the Yellow River.

The stone tooling technology is relatively primitive, the raw material is quartzite of various colors, there are also a small amount of vein quartz and volcanic rock.

[11] Some relics coexisting with stone tools include cut or scraped antlers, as well as burned animal bones, horns and teeth, which are considered to be signs of human use of fire.

believe that the "artificial nature of stone tools cannot be determined" and suspect that it was caused by river collisions[15][16][17][18] Experts from the Shanxi Provincial Institute of Archaeology believe that the most effective way to resolve these disputes and problems is to further excavate to obtain new information.