鲜卑拓跋部在力微统治以后,与中原王朝以及临近部落的交往越来越多。随着时间的推移,大量的雁北晋人,以不同的方式进入拓跋社会中,他们其中的佼佼者参与到部落的政治活动中,为加强拓跋首领权力出谋画策,受到了拓跋部落首领的重用,成为了拓跋社会中的新贵阶层。新贵阶层占据了国家政治上的重要职位,排挤了部落旧贵族,从而造成了“新旧猜嫌”。随着拓跋首领权力的不断加强,新旧之间的猜嫌越来越严重,并最终演化成了政治上的冲突。 Xianbei Tuoba Department in the micro-rule, with the Central Plains Dynasty and the neighboring tribes more and more contacts. With the passage of time, a large number of Yanbei Jin people entered the Tuoba society in different ways. Among them, the best of them participated in the political activities of the tribe. They tried their best to improve the power of Tuoba chiefs, The reuse of tribal chiefs has become the upstart class in Tuoba society. The upstart class occupies an important political position in the country, squeezing tribal old aristocracy, resulting in “old and new suspicions ”. As the powers of Tuoba chiefs continue to strengthen, the suspicion between the old and the new becomes more and more serious, and eventually evolves into a political conflict.