Emperor Wen of the Sui Dynasty abolished Yongjia County and placed it as a prefecture in the ninth year of Kaihuang's reign (589). Yongning County was changed to Yongjia County , and the county was named after the county. "Yongjia" has been the name of the county since then. The word "Yongjia" means "long and beautiful water". In the first year of Emperor Yang's Daye of the Sui Dynasty (605), Yongjia County was restored. In the fifth year of Wude (622), Emperor Gaozu of the Tang Dynasty, Yongjia County was abolished and Dongjia Prefecture was established. It was placed under the control of Kuozhou Governor's Office. Nanxi and Xixi townships in Yongjia County were analyzed and established in Yongning County. Emperor Taizong of the Tang Dynasty In the first year of Zhenguan (627), Dongjia Prefecture was abolished and re-subordinated to Kuo Prefecture, and Yongning was merged into Yongjia County. Tang Gaozong In the first year of Shangyuan (674), Yongjia and Angu counties were separated from Kuozhou and Wenzhou was established to govern Yongjia. After the establishment of Lecheng County in Yongjia in the first year of Emperor Wu of the Tang Dynasty (689), the jurisdiction of Yongjia County remained unchanged through , five dynasties, , Song, Yuan, Ming and Qing dynasties. In the 37th year of the Republic of China (1948), the three townships of Wenxi, Shiran and Xi'ao were assigned to Qingtian County.
In May 1949, the entire Yongjia County was liberated. With Oujiang as the boundary, Wenzhou City was set up in the south, Jiangbei County was set up as Shuangxi County , and Yantou Town was governed. On September 21, Shuangxi County was renamed Yongjia County and moved to Fenglin Town. , moved to Luofu Longqiao in June of the following year, and moved to Jiushan in Wenzhou City on December 21. In May 1950, the four districts of Wucuo, Yongqiang, Sanxi, and Tengqiao that originally belonged to Wenzhou City were placed under Yongjia County. In 1958, the four townships were returned to Wenzhou City, and Yongjia County was moved to Shangtang Town . In 1961, the three townships of Xi'ao, Shiran, and Shangheng in Qingtian County were placed under Yongjia County. In 2001, Qidu Town was incorporated into Wenzhou City.
