| Longcheng | |
| Native Name: | 陇城镇 |
| Native Name Lang: | zh |
| Settlement Type: | Town |
| Area Total Km2: | 78.9 |
| Population Total: | 32,000 |
| Population As Of: | 2012 |
| Pushpin Map: | Gansu#China |
| Coordinates: | 35.002°N 105.9719°W |
| Subdivision Type: | Country |
| Subdivision Name: | China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Gansu |
| Subdivision Type2: | City |
| Subdivision Name2: | Tianshui |
| Subdivision Type3: | County |
| Subdivision Name3: | Qin'an |
Longcheng is a town of Qin'an County, Tianshui, Gansu, China. It is located about 45km (28miles) from the seat of Qin'an County. In 2012 it had a population of 32,000, of which around 10,000 lived in the town's main village.[1]
In 228, the Battle of Jieting was likely fought at the present location of Longcheng.[2]
During the Sui dynasty it was the center of Longcheng Commandery; in the Song dynasty it was a fortress town. During the Republic of China era it was known as Longcheng District. In 1965 it became a community, and in 1984 it was changed to a township. In 2003 it was upgraded to a town.[3]
The town has several historical sites:[4]