In the Xia Dynasty, Dingbian area belonged to Yongzhou, and it was a nomadic settlement of the Qiang and Di nationalities, descendants of the ancient Qiang nationality.
During the Yin and Shang Dynasties, Dingbian area was a ghost territory.
From the Western Zhou Dynasty to the Warring States Period, there were dog-Rong tribes living in Dingbian successively, such as meat porridge and stubborn people. In the 43rd year of Zhou Nanwang (272 BC), Qin Zhao conquered the Yi Canal and established Beidi County, including the present Dingbian area. In the twenty-sixth year of the King of Qin (22 BC1), the emperor unified the six countries, and the military and political system was located in Dingbian, which was transferred to Maling County, a northern county.
The secretariat of the Western Han Dynasty is located in Shuofang secretariat. The eastern part of the county belongs to She Yan County of Shang Jun County, the western part belongs to Qiyan County of Beidi County, and the western part of the southern mountainous area belongs to Maling County. Emperor Wu of the Han Dynasty invaded Xiongnu in the north. In the fourth year of Yuanshou (1 19) and the sixth year of Ding Yuan (1 1 1), the number of domestic residents increased greatly.
In the early years of the Eastern Han Dynasty, Xiongnu moved eastward, and the northern counties moved inward twice, and the border was controlled by Xiongnu. In the early years of the Western Jin Dynasty, the sixteen countries in Wuhu fought endlessly, and the border was determined by the former Zhao followed by Zhao, the latter Qin and the former Qin. In 407 A.D., Helian Bobo, the leader of Xiongnu Tiefu Department, established Tongwan City (now Jingbian Baichengzi) as its capital, with the title of Xia, ruled by Hetao, with Dingbian as its hinterland. At the beginning of the Northern Wei Dynasty, there was no county in the county, which was a place where Han and Xiongnu, Xianbei, Anta, Di and Qiang lived together.
During the Northern Wei Dynasty, the whole territory of Dingbian belonged to Andaxing County. Wuding was abandoned and changed to Xianxi County, and the eastern part of Dingbian belonged to Xinyi County. In 534 AD, the Northern Wei Dynasty was divided into the Eastern Wei Dynasty and the Western Wei Dynasty, and the whole territory of Dingbian belonged to the Western Wei Dynasty, Xi 'anzhou was restored, and Daxing County was changed to Wuyuan County. In the third year of the Western Wei Dynasty (AD 553), because Dingbian was rich in pool salt, Xi 'an was changed to Yanzhou, and Wuyuan County was still located. The Northern Zhou Dynasty followed the Western Wei Dynasty.
Sui changed Yanzhou to Yanchuan County, Wuyuan County to Wuyuan County, Luoyuan County to the south of the mountain, and it was included in Honghua County, and the county territory was returned to it; Dongtan District belongs to Changze County, Shuofang County. At the end of Sui Dynasty and the beginning of Tang Dynasty, the whole territory was occupied by Liang. In the first year of Tang Wude (6 18), Yanzhou was restored. In the fifteenth year of Yuanhe (820), Dingbian had jurisdiction over Yanzhou, Qingzhou and Yizhou. During the Five Dynasties, counties belonged to Liang, Tang, Jin, Han and Zhou.
The early Northern Song Dynasty belonged to Yanzhou, Shaanxi Road. In the fifth year of Xianping (1002), the whole territory fell into Xixia and Yanzhou was still built. In the twenty-second year of Emperor Mao of Mongolia (1227), Genghis Khan destroyed Xixia and abandoned Yanzhou. After that, the Yuan Dynasty was established, and provinces, prefectures and prefectures were established. The eastern part of the border belongs to Yan 'an Prefecture, and the rest belongs to Qingyang Prefecture, all of which belong to Shaanxi Province.
In the Ming Dynasty, military and political health centers were set up in border areas, and Dingbian was subordinate to Yan 'an House, Chief Secretary of Shaanxi Province, and Qingyang Health Center. In the middle of Ming Dynasty, in order to resist the invasion of Mongols, the Great Wall and castles were built many times. At that time, Dingbian belonged to Yansui Town, Dingbian was stationed in General, and Yongji and other 13 battalions were West Road. In the forty-second year of Jiajing (1562), the deputy general of the Western Association of Yansui Town was stationed in Dingbian Camp. In the early Qing Dynasty, the administrative system of Dingbian followed the Ming Dynasty, and it was subordinate to Jingbian Tongzhi and stationed in the Qian General Administration. In the ninth year of Yongzheng (173 1), Dingbian County was established, and Tongzhou County was established in Anbian, which belonged to Yulin Prefecture.
In the first year of the Republic of China (19 12), the Beijing government ordered provincial governments to lay roads. Dingbian belongs to Yulin Road, Shaanxi Province. During the Agrarian Revolutionary War, Dingbian County (Zhibian Town) and Anbian County (Zhiwumaozi and Xin 'anbian Area) were located in the county liberated areas and belonged to the Shaanxi-Gansu-Ningxia Border Region. The Kuomintang area is located in Dingbian County, Republic of China. 1937, Shaanxi-Gansu-Ningxia province was abolished, and the Shaanxi-Gansu-Ningxia border region government established a trilateral special administrative region (sub-region). The Office of the Commissioner of Administrative Supervision ruled the border town, 1949, and successively led Dingbian, Yanchi, Wuqi, Jingbian and Anbian counties. After liberation, Anbian County was merged into Dingbian County, known as People's Republic of China (PRC) (China) Dingbian County, Shaanxi Province.