According to the researchers, taking Tomb M276 as an example, according to archaeological typology, the owner of the tomb may be a woman in Xirong. With the analysis of scientific and technological means, it is further confirmed that the woman was born in the northern dry farming area, spent her youth in the north, and then went to the south after her youth.

The owner of M257' s male tomb was also born in the north, and the boy came to Jianghan Plain, where he grew up to be a military commander. Among the funerary objects, there are three obviously used bronze swords. Judging from his age of death, he may have participated in the Qin unification war.

At the same time, Chu-style bronzes and Qin-style daily-use pottery were unearthed from another Qin tomb. Pottery is often stamped with the word "An Lu Ting", indicating that it is produced locally. Judging from the typical pottery of Chu culture buried with the tomb-lying pot, the owner of the tomb may be a descendant of Chu who married Qin people, and he accepted Qin culture while retaining some Chu cultural traditions.

The paintings of funerary objects unearthed in M234 come from Qin cultural tombs, and the images have strong Qin cultural factors. However, the structure of the coffin and the doors and windows at the head of the tomb have the characteristics of Chu culture.

"This phenomenon of Qin Chu's coexistence has appeared in many tombs in Zhengjiahu Cemetery, which is an intuitive testimony of Qin Chu's cultural integration." Luo Yunbing said that these archaeological materials vividly demonstrated the historical process of the gradual integration of Qin culture and Chu culture into Chinese civilization, and provided a typical case for studying the historical process of Chinese civilization from pluralism to unity and the formation of national identity.