After the rebellion of the Eight Kings and the infighting of the royal family, the power gradually declined. In the north, with the demise of the Western Jin Dynasty. It formed the chaotic period of "Five Hus and Sixteen Countries". After the Tuoba family ended the establishment of the Northern Wei Dynasty in sixteen countries, it contributed to the relative unification of 149. This is the Northern Dynasty. Jinshi moved eastward and perished. From 3 17 to 420 AD, it was the Southern Dynasty. At this time, calligraphy also inherited the atmosphere of the Eastern Jin Dynasty, and it was very popular from emperors to literati. Calligraphers in the Northern and Southern Dynasties are full of stars, and anonymous calligraphers are the mainstream. They inherited the fine tradition of the previous generation of calligraphy and created excellent works worthy of their predecessors, which created the necessary conditions for the prosperity of calligraphy in the Tang Dynasty.
Wei Bei was the best calligrapher in the Southern and Northern Dynasties. Weibei is the general name of inscription calligraphy in the Northern Wei and Southern and Northern Dynasties, and it is the transitional period from official script in Han Dynasty to regular script in Tang Dynasty. Kang Youwei said: "Anyone who chooses a family in Weibei is an adult. It is beautiful to combine all the families. " Zhong Zhishuai's Xue Xuan Shu Pin said: "Weibei calligraphy inherits the charm of Han Lizhi and opens the voice of Tang Kai." In the early Tang Dynasty, Ou Yangxun, Yu Shinan, Chu Suiliang and other regular script writers directly inherited the brushwork used in the annals of the Six Dynasties.