The Sunzhuang site, located in the south of Sunzhuang Village, Zhongyuan District, Zhengzhou City, Henan Province, is a late Yangshao cultural site distributed in the middle and lower reaches of the Yellow River. Through the measurement and observation of 10 cases of basically intact skulls unearthed from the site, the following conclusions are drawn: The craniofacial features of Sunzhuang group can be summarized as follows: high cranial type combined with narrow cranial type, moderate to large facial flatness, narrow frontal type, middle nasal type, low orbital type, middle facial angle belonging to flat jaw type, underdeveloped canine dentate fossa and nasal root fossa. Simple parietal suture. The morphological characteristics of the skulls of the ancient residents of the Sunzhuang formation belong to the Asian Mongolian nationality. The results of the multivariate statistical analysis of the morphological characteristics of the skull showed that the Sunzhuang formation is most closely related to the modern South China formation (R=1.26) of Asian Mongolians, and is estranged from the modern Mongolian group (R=1.80) and Tungus group (R=2.06). In comparison with Neolithic formation, the relationship between Sunzhuang male formation and Yangshao merge formation (R=1.00), Miaozigou formation (R=1.00), Xishan formation (R=1.07) and Dawenkou formation (R=1.13) is close. Sunzhuang female group is closest to Dawenkou group (D_ij=3.10), Xubao group (D_ij=4.58) and Xishan group (D_ij=4.60). In summary, We can see that the middle and late Yangshao people distributed in the middle and lower reaches of the Yellow River have the same craniofacial characteristics and high homology, and should belong to the “ancient Central Plains type” residents.