It is said that the "complete sinicization" of the Northern Wei Dynasty eventually led to national division, and the country was divided into two parts, one part was Northern Qi controlled by Gao Huan and the other part was Northern Zhou controlled by Yu Wentai. Because the Northern Zhou Dynasty was separated from the Northern Wei Dynasty, a series of problems naturally appeared in the Northern Wei Dynasty, the most important of which was ethnic contradictions. How to deal with the relationship between Hu people and Han people is the key to political stability.

Yu Wentai hasn't read many books, but he also understands that "you can't eat hot tofu if you are impatient". In order to sinicize the Hu people, you should not use too strong means, but "figure it out slowly" to eliminate the contradictions between ethnic groups. The first thing Yu Wentai did was to give all the generals Xianbei surnames. Some people say that by doing so, Yu Wentai is not anti-China. In fact, the reason why Yu Wentai did this was not against "China", but after careful consideration. On the one hand, the generals who were originally Xianbei people changed their Xianbei surnames, which means that they have been recognized, which can enhance their national identity and ease contradictions; On the one hand, giving the Han people a Xianbei surname can also enhance their sense of security, which is more conducive to the integration of the two ethnic groups.

The second thing Yu Wentai did was to implement the "eight-pillar country" system. Literally, the "eight-pillar country" is the eight pillars supporting the country, and its importance is self-evident. In fact, Xianbei people and Han people have different understandings of the word "Eight Pillars Country". For Xianbei people, the "Eight-Pillar Country" and the "Eight-Clan System" of that year have the same word "eight", which shows that Yu Wentai has never forgotten his roots; For the Han people, if Yu Wentai and Yuan Xin, the royal family of the Northern Wei Dynasty, are excluded, there are actually only six pillars, which is just in line with the concept that the Emperor commands the Six Armies. From this point of view, Yu Wentai has a heart for the Han people.

With these two means, the national contradiction between Xianbei people and Han people has been weakened. Later, Yu Wentai finally solved the problem of ethnic contradictions perfectly by another means, that is, "intermarriage". Since everyone can marry, they form a community of interests, where there are no ethnic contradictions.

In this way, the ethnic contradictions in the Northern Zhou Dynasty were perfectly solved.