Long County was called Longzhou in ancient times and got its name because it is located on the east slope of Longshan Mountain. Volume 2 of "Yuanhe County Chronicle": Longzhou "gets its name from the mountain". Therefore, it was governed in the south of today's Long County. In the second year of Emperor Ming of the Northern Zhou Dynasty (558), it was moved to Jinzhi. In the fifth year of Emperor Kaihuang's reign in the Sui Dynasty (585 AD), the county was renamed Qiyuan County, and Qiyuan County of Yuan Province was merged into Longzhou. In 1915, it was changed to Longxian County (approved in 1918). It is still named after Longzhou.
Long County was established earlier. It was the territory of Shiguo in the Shang Dynasty and the residence of Qin Feizi in the Zhou Dynasty (about 771 BC). It is an important birthplace of the Qin people. In the 26th year of the First Emperor of Qin (221 BC), it was named "Qiyi". In the first year of Emperor Gaozu of the Han Dynasty (206 BC), the city was changed into a "county" and Longguan was established, so it is called Longguan, the capital of Qin. The famous Silk Road at home and abroad passes through this pass. During the reign of Emperor Xiaoming of the Northern Wei Dynasty (517 AD), "Eastern Qin Prefecture" was established in "Qixian County". In the second year of Emperor Wei's elimination (553 AD), Qin was renamed "Long Prefecture", which lasted through the Five Dynasties, Song, Yuan, Ming, and In the Qing Dynasty, after the Revolution of 1911 (1913 AD), the state was changed to Long County. In 1961, Qianyang was merged into it. In 1964, the county system of Long County was restored to this day.
According to "Yu Gong" of Xia and Shang Dynasties, it was the domain of Yongzhou.
In the early Western Zhou Dynasty, Duke Zhou implemented a system of enfeoffment, and the area upstream of the Mianshui River became the fiefdom of the State of Ya. In the eighth year of King Xiao's reign (890 BC), Feizi, the leader of the Qin people, made meritorious service in raising horses for the Zhou Dynasty between Qian and Wei. In the thirteenth year (885 BC), he made Feizi a vassal. Original) built the city of Qin. In the sixth year of King Zhou You (776 BC), Qin Xianggong (the fifth-generation grandson of Feizi) moved the capital to Qiyi (now Zhengjiagouyuan, Southeast Town). In the first year of King Ping of the Eastern Zhou Dynasty (770 BC), Qin Xianggong was granted the title of a prince for his meritorious service in escorting King Ping of Zhou to move eastward, and was granted the land west of Qi. In the fourth year of Duke Wen of Qin (762 BC), the capital was established in Qiyi for 14 years. During the Spring and Autumn Period, Duke Mu of Qin (659 BC-621 BC) established his capital in Goujiagou Village, present-day Southeast Town. In the twelfth year of Qin Xiaogong (350 BC), the county system was implemented and Qiyi was renamed Qixian.
After Qin Shihuang unified the six countries, Qian County was still established, which belongs to the internal history.
In the early Western Han Dynasty, Yuyi County was established in the west of Qian County (the administrative seat is now east of Guguan Street). In the fourth year of Emperor Mangdi's reign (23rd year), Yuyi County was renamed Yuping County, which belonged to Youfufeng.
The Eastern Han Dynasty abolished Yuping County and merged its jurisdiction into Qian County. In the sixth year of Emperor Zhongping's reign (189), Qian County was transferred to Han'an County (the administrative seat is now northwest of Baoji City). During the reign of Emperor Xian, the county was withdrawn, and Qian County returned to Youfufeng.
In the early Wei Dynasty of the Three Kingdoms, the area under the jurisdiction of Suimi County was merged into Qian County.
During the Taikang period of the Western Jin Dynasty (280-289), it was divided into the western part of Qian County and Longguan County was established on the former site of Yuyi County. It was later revoked and the jurisdiction still belonged to Qian County and belonged to Fufeng County.
In the first year of Jianping (330) of Hou Zhao (Shi Le) of the Eastern Jin Dynasty (Sixteen Kingdoms), Longdong County was established in Qian County and retreated. In the second year of Jianping (331), the area west of Qianhe in Chencang County (now Chencang District) was placed under the jurisdiction of Qian County and belonged to Fufeng County.
In the second year of Taiyan of the Northern Wei Dynasty (436), Dongqin Prefecture was established in Qian County and Longdong County was reestablished. East Qinzhou controls 3 counties including Longdong. In the first year of Zhenjun Taiping (440), East Qin Prefecture was changed to Southern Qin Prefecture. In the fourth year (443), it was revoked and Longdong County was transferred to Jingzhou (now Jingchuan, Gansu Province). In the sixth year (445), Qian County was changed to Qianyin County. In the second year of Emperor Xiaoming's Xiping reign (517), the southern part of Qianyin County was analyzed, and Nanyou County (today's Xiangquan Township, Baoji County) was established in the south from the mouth of the valley, and was placed under the jurisdiction of Wudu County (the administrative seat was Yuanchuan County, that is, Chencang County in Jin Dynasty). . In the third year of Zhengguang's reign (522), parts of Qizhou and Jingzhou were divided into Qianyin County, and Dongqinzhou was reestablished, with Qinyin County as its administrative center, and it still had three counties. In the second year of Xiaochang (526), ??the southeastern part of Qianyin County was analyzed, and Changshe County was established at the mouth of Changshe River (east of Xiangquan Township, Baoji County today), which belonged to Longdong County in East Qinzhou. In the third year (527), East Qinzhou was occupied by Wanqi Chounu. In the first year of Emperor Xiaowu's Yongxi reign (532), prefectures, counties, and counties were restored in Baozishen Village, Duyang Township. Dongqin Prefecture still controls the original three counties, with the seat of Qinyin County, and Longdong County controls the two counties of Qianyin and Changshe.
In the fourth year of Emperor Wen of the Western Wei Dynasty (538), Nanyou County was abolished and the area under its jurisdiction was merged into Qianyin County. In the second year of the deposed Emperor Yuanqin (553), Qianyin County was changed to Duyang County, Dongqinzhou was changed to Longzhou, and Duyang County was the administrative center. This is where the name of Longzhou began. Led Pingliang and Longdong counties. Longdong County controls Duyang and Changshe counties.
In the second year of Emperor Ming of the Northern Zhou Dynasty (558), the prefecture, county and county offices were moved to the present county seat to avoid floods. In the fourth year of Tianhe reign of Emperor Wu (569), Longzhou was merged into Qizhou. In the fifth year (570), Changshe County was divided into Liyang County and Liyang County. Soon, the county was withdrawn, and Qianyang County still belonged to Longdong County.
In the second year of the Elephant Period (580), Duyang County was renamed Qianyin County, Nanyou County was restored, Longzhou was reestablished, and Qianyin County was governed. It controls the 2 counties of Longdong and Pingyuan, and the Longdong County controls the 4 counties of Qianyin, Changshe, Nanyou and Qianyang.
In the third year of Emperor Wen's reign (583) of the Sui Dynasty, Longdong County was abolished and the county was led by a state. Changshe County was abolished and its jurisdiction was merged into Nanyou County, and later it was separated and reestablished. In the fifth year (585), Qianyin County was changed to Qianyuan County. In the eighteenth year (598), Changshe County was changed to Wushan County. At the end of Emperor Kaihuang's reign, Nan was transferred from county to Qizhou. In the third year of Emperor Yang's reign (607), Longzhou was abolished, and Qianyuan, Wushan, and Qianyang were transferred to Fufeng County. In the second year of Yining (618), Longdong County was reestablished and its administrative seat was Qianyuan County.
In the first year of Wude in the Tang Dynasty (618), Longdong County was renamed Longzhou, and its administrative seat was Qianyuan County, which included 4 counties: Qianyuan, Qianyang, Wushan and Huating (in today's Gansu Province). In the first year of Wude (618), Hanzhou was established in Nanyou County. In the fourth year (621), it was revoked and Nanyou County returned to Longzhou. In the first year of Tianbao (742), Longzhou was renamed as Qianyang County and its administrative office was Qianyuan County. In the first year of Qianyuan (758), it was renamed Longzhou, with its administrative office in Qianyuan County, and its jurisdiction over the five counties of Qianyuan, Qianyang, Wushan, Nanyou and Huating. In the second year of Shangyuan (761), Wushan County was changed to Huashan County, and later renamed Wushan County. In the third year of Yuanhe (808), Huating County was abolished and its jurisdiction was merged into Qianyuan County. Nanyou County was abolished and its jurisdiction was merged into Wushan County. Longzhou encompasses three counties: Wushan, Qianyuan, and Qianyang.
During the Five Dynasties, Longzhou was still established in the Later Tang, Later Jin, Later Han, and later Zhou dynasties, with its administrative seat in Qianyuan County and its jurisdiction over the three counties of Qianyang, Qianyuan, and Wushan. During the reign of Emperor Shizong of the Later Zhou Dynasty (946-959), Huating County was reestablished in the northwest of Qianyuan County and was still under the jurisdiction of Longzhou.
In the first year of Kaibao (968) of Taizu Taizu of the Northern Song Dynasty, Long'an County was established from the western part of Wushan County to the south of Gunan County. At the beginning of the Taiping and Xingguo era (976), Huating County was transferred to Pingliang Prefecture. Longzhou covers the four counties of Qianyuan, Qianyang, Wushan and Long'an, and is governed by Qianyuan County. In the fifth year of Xining (1072), Longzhou was transferred to Qinfeng Road.
In the early Jin Dynasty, Qinfeng Road was changed to Xiqin Road, Long'an and Wushan counties were abolished, and the jurisdiction was merged into Qianyuan County. In the twenty-seventh year of Dading (1187), Fengxiang Road was established in the east of Fenxi Qin Road, Longzhou was changed to Fengxiang Road, and Wushan County was reestablished. In the eighth year of Taihe (1208), Long'an County was reestablished. Longzhou covers the four counties of Qianyuan, Qianyang, Wushan and Long'an, and is governed by Qianyuan County.
In the early Yuan Dynasty, Longzhou was transferred to Gongchang Road. In the seventh year of Emperor Shizu's reign (1270), Wushan and Long'an counties were evacuated, and their jurisdiction was merged into Qianyuan County. Longzhou controls two counties, namely Qianyuan and Qianyang, and its administrative office is still located in Qianyuan County. In November of the fourth year of Yanhu (1317), Qianyuan County was abolished, and the jurisdiction was directly administered by Longzhou, and Qianyang County was taken over.
In the second year of Hongwu, Taizu of the Ming Dynasty (1369), Longzhou was under the control of Si Fengxiang, the official envoy of Shaanxi Chengxuan, and led a county in Qianyang. In the thirty-eighth year of Jiajing (1559), Qianyang County was changed to Fengxiang Prefecture, and Longzhou still belonged to Fengxiang Prefecture.
In the second year of Emperor Kangxi of the Qing Dynasty (1663), Longzhou was placed under the jurisdiction of Fengxiang Prefecture, Fengxing Road.
In the 2nd year of the Republic of China (1913), Longzhou was renamed Longxian, which belonged to Guanzhong Road. In the 17th year (1928), the road system was abolished and counties were led by provinces. Long County was directly under the Shaanxi Provincial Government. In 24 years (1935), it was changed to the jurisdiction of the Ninth Administrative Supervisory Commissioner's Office of Shaanxi Province (administrative office Fengxiang). In 1939, the Ninth Administrative Inspectorate moved to Baoji, and Long County was still under its leadership.
After the founding of New China, with the approval of the State Council, the establishment of Qianyang County was canceled in November 1958, the territory was merged with Long County, and the Xianggong and Xinjie communities under the jurisdiction of Long County were placed under municipal administration. In September 1961, the establishment of Qianyang County was resumed, and the jurisdiction of Long County remained.