According to the archaeological discoveries of “Yangchun Dushizai Ancient Cultural Relic of Fossil Human”, the ancestors of Liangyang people appeared ten thousand years ago.

　　Government of Sui Dynasty established Yangjiang County and Yangchun County in 606.

　　Yangjiang County was upgraded as Zhili State twice in 1867. Government of the Republic of China established Yangjiang County and Yangchun County again in 1912.

　　Yangjiang was permitted to become a city by the Sate Council of the People’s Republic of China in 1988 and is a prefecture-level city now.