Suizhou's "Sui" originated in the Western Zhou Dynasty. At that time, Hanzhong was a vassal state, belonging to Chu, and there were countries such as Chen, Cai and Tang nearby. Since the Western Zhou Dynasty, the ancient place name Sui has been handed down.

"Sui Shu" Volume 50 "Biography of Pang Huang" Cloud ... Gaozu went out to be the secretariat of Suizhou, crossing Xiangyang, and Wang Wei made [Pang] ostentatious Gaozu. ..... "The" Suizhou Secretariat "here is the" Suizhou City "located in the north of Hubei and the south of Tongbai Mountain. When Emperor Wu of Zhou acceded to the throne, Emperor Wendi of Sui Dynasty "moved to Zuoxiao Gongbo". Out of Suizhou secretariat, holding the general. After being ill for three years, staying around day and night is called pure filial piety. When Yuwen Hu was in power, he was particularly jealous of Gaozu and was often hurt. General Hou Fu and Hou Shou are not protected. Later, he attacked Sui Gong. " It should be noted that the "Jue" here is the "Jue" of Yang Zhong, the father of Yang Jian in the Northern Zhou Dynasty. It is no exaggeration to say that Emperor Wendi of Sui Dynasty made his fortune in Suizhou. Since the Qin Dynasty, all "vassals" have their own fiefs and their own vassal kingdoms. The fief of Emperor Wendi's father, Yang Zhong, is in Suizhou, and his son can get the support of the people in Suizhou, which is the factor of "harmony between people". His title was also named "Suizhou".

Like Cao Cao, Emperor Wendi of Sui Dynasty won the throne through a "bloodless" court struggle. On Jiazi Day in February, 58 1 year, Zhou Jingdi announced his abdication with a letter from Emperor Wendi of Sui Dynasty. Yang Jian resigned himself to his fate and entered the palace from the imperial court. As a gift, the emperor was located in Guang Lin Hall, and the title was Da Sui, which was changed to Emperor Wendi of Sui Dynasty.