Shimen, which belongs to Changde City, Hunan Province, is the northernmost land in western Hunan. Shimen is located at the junction of Hunan and Hubei, looking at Dongting Lake in the east, Taohuayuan in the south, Zhangjiajie in the west and the Three Gorges of the Yangtze River in the north. Known as the "gateway to Wuling" and "Xiaoxiang Arctic". The terrain is curved gourd-shaped, and the terrain is inclined from west to southeast. There are 236 rivers and streams in Hong Kong. The annual average temperature in China is 65438 06.7℃.

Shimen has a history of 1400 years since Shimen County was established in the Southern and Northern Dynasties. The county seat was the land of Jingchu in ancient times, and Cigu County in Qianzhong County was transferred from Qin. Han Lingyang County and Wuling County; Wu Yong 'an of the Three Kingdoms changed the county in six years; Liyang County, Tianmen County, Metal; During the Wei, Jin, Southern and Northern Dynasties, Tianmen County moved from Dayong County to Shimen. In the second year of Yong 'an, Chen Wudi, Hou Liang Xiaocha went to Tianmen County, but it was located in Shimen County. In the ninth year of Emperor Wendi, Shimen County was abandoned and placed under the jurisdiction of Lizhou. Since then, although its members have changed, the name of the county has not changed easily.