Abstract: Due to the lowliness of his ancestors and the unknown background of his father CAO Song, CAO Cao personally wrote Family Biography to construct the CaoWei lineage. According to the CAO Teng Stele Inscription, the main line of the Cao Wei regime's construction of a family lineage is from “Cao family coming from Zhu” and “after Cao Shu Zhenduo” to “the Cao family lineage coming from the You Yu family”. The final establishment of Yu Shun as the ancestor was the consensus of the Cao Wei regime after CAO Pi. The Cao Wei regime insisted that the Cao family “originated from the Yu family” and successfully resolved the contradiction between the humble ancestors and the replacement of the Han Dynasty. Therefore, the historical figure Emperor Shun played an irreplaceable role in the political transformation that replaced the Han Dynasty. Establishing Yu Shun as the founder and vigorously promoting the political wisdom of the Cao Wei regime, which not only successfully achieved the goal of replacing the Han Dynasty and achieved orthodox status, but also conducive to strengthening the cohesion between the Han ethnic group in the Central Plains and the ethnic minorities in the north.