Viet Nam was deeply influenced by China (especially in the north, which was conquered by China for many times), so it also had the concept of "changing dynasties", but their dynasties generally continued to use country names such as "Annan" and "Southland" and were distinguished by surnames (such as "Chen Chao" and "Ruan Chao").

Vietnam has also implemented the imperial examination system for a long time, similar to China. However, the literacy rate of Vietnamese is lower than that of contemporary China, and the quality of officials is not as good as that of China.

China's many conquests to Vietnam were all in vain because of the huge losses caused by local guerrilla operations. This means that the income from conquering Vietnam is not enough to pay for the maintenance of the local garrison. In this case, withdrawal is of course necessary. The reason for withdrawing troops is not "stubborn resistance" and "heavy losses" as the Vietnamese said.

The last champion of China cultural circle came from Viet Nam.

Vietnamese first learned Chinese and founded their own language, but being able to speak Chinese is regarded as a symbol of knowledge. Vietnam's imperial examination is also to test Chinese. Although French colonists later formulated Latin Vietnamese for Vietnamese, and the latter proved to be more in line with the needs of Vietnamese, Chinese can still be seen in contemporary Vietnamese.