Tongchuan, originally named "Tongguan", was renamed Tongchuan because it was homophonic with "Tongguan". The capital was also located in the Tongshui River River, so it was renamed Tongchuan.
Tongchuan Xia and Shang belong to ancient Yongzhou. Qin belongs to the inner history. The county was established in the second year of Emperor Jing of the Western Han Dynasty (155 BC), and it was under Zuo Fengyi. During the Wei period of the Three Kingdoms, it was under the jurisdiction of Beidi County. In the seventh year of Taiping Zhenjun of the Northern Wei Dynasty (446), Tongguan County was established, which was under the jurisdiction of Beidi County. In the fourth year of Jiande in the Northern Zhou Dynasty (575), Tongguan County was renamed Tongguan County, and
was affiliated to Yizhou. The Sui and Tang dynasties were once under Yongzhou and Jingzhao County. From the third year of Tongguang in the Later Tang Dynasty (925), it has been through the Song, Jin, Yuan, Ming and Qing dynasties, all under Yaozhou.
In the early years of the Republic of China, he was under the jurisdiction of Xi'an Prefecture. In 2nd year (1913), it belonged to Guanzhong Road, Shaanxi Province. In 16th year (1927), it belonged to Guanzhong District. In July 25 (1936), it belonged to the Seventh Administrative Inspection Area of Shaanxi Province. In the early 29th year (1940), it belonged to the third administrative inspection area. In April 1944, it belonged to the Office of the Second Administrative Inspector. In July 1946, the same official was renamed Tongchuan. In October 1947, it belonged to the Office of the Third Administrative Inspector.
In May 1948, according to the instructions of the Communist Party of China Road East Working Committee, Tongguan County Government was established, which belongs to the leadership of the Shaanxi-Gansu-Ningxia Border Region Government; in November, it belongs to the leadership of the Guanzhong District Administrative Inspector Office. Tongchuan was liberated in April 1949. In May, the Guanzhong District Administrative Inspection Office was changed to the Sanyuan District Administrative Inspection Office, and the Tongguan County was under its leadership. On July 7, the county name was renamed Tongchuan.
On August 1, 1966, Tongchuan City was changed to a provincial city. On January 1, 1980, the four townships of Guangyang, Gaolouhe, Azhuang, Xiaojiabao and Yaoxian in Pucheng County were assigned to Tongchuan City. On May 1 of the same year, the county-level urban areas and suburbs were divided into county-level urban areas. On October 25, 1983, Yijun County was transferred to Tongchuan City. In July 1992, Tongchuan City New District was established. In November 1993, the new district was built with the approval of the Shaanxi Provincial People's Government and enjoyed all preferential policies for provincial economic and technological development zones. In March 2000, with the approval of the State Council, the urban area of Tongchuan City was renamed Wangyi District of Tongchuan City, and the suburbs of Tongchuan City were renamed Yintai District of Tongchuan City.
