The town of Longcheng has a long history, and the ancient battlefield of the Three Kingdoms, Jieting, is located in its territory, which is one of the four major market towns in ancient Qin'an. Historical records, the Han Emperor Yuanfeng five years (106 BC), Liangzhou assassins Department of Ye in Longcheng (the ancient name of Longcheng); Western Jin Dynasty set up Loyang County, Loyang County, set up Longcheng County in the Sui Dynasty. Later generations in Longcheng has been set up in the road, county, town establishment. After the liberation of Longcheng City, Longcheng City was set up in 1950, changed to a commune in 1959, withdrawn from the district and the community in 1965, and withdrawn from the community and changed to a township in 1984. 1996, with an area of 79 square kilometers and a population of 29,000 people, it had jurisdiction over Zhangjiagou, Zhangwan, Longcheng, Shanwang, Zhangfu, Shifu, Zhangzhao, Chenchuan, Lijiazhuang, Fengwei, Wangjiawan, Changjiaping, Changying, Liyuan, Xiguan, Longquan, Loyang, Shangyuan, Wang Li, and Touyuan, and was also known as "the city of Longcheng. , Nanqi, Wang Li, Toutou, Zhongzhuang, Yinpo, Zhu Wei, Fan Lu, Shang Wei, Xu Dun, Jinquan, Chongren, Zhao Shan 30 administrative villages.
In 2003, Longcheng withdrew the township and established a town. 2005, the town area of 78.94 square kilometers, jurisdiction over 30 administrative villages, 68 villagers groups, ***6534 households, 31,272 people; of which 22,452 agricultural population, non-agricultural population of 8820 people; population density of 393 people / square kilometer. 2006, the abolition of eight villages: abolition of Lijiazhuang village, and into the Liao Yang Village; the abolition of Shibao Village, Zhang Fu Village, merged into Nanqi Village; the abolition of Liyuan Village, Changjiaping Village, merged into Changying Village; the abolition of Zhongzhuang Village, merged into Yinpo Village; the abolition of Zhao Shan Village, merged into Chongren Village; the abolition of Wang Li Village, merged into Toutou Village.