In ancient times, it was the Qiang land. In the eastern part of the prefecture of the Han Dynasty, the tribe activity range of Xianlingbeihe and others, and the western part belonged to the "Qiang" pasture land. During the Tang Dynasty, he was under the jurisdiction of the Tubo Lacheng Jiedushi until the Song Dynasty. In the Yuan Dynasty, the northwest region was under the jurisdiction of Shazhou Road, Gansu Province, and most of the remaining areas were under the jurisdiction of Xuanzhengyuan , and the Tubo , etc. In the early Ming Dynasty, it was established as the four guards of Anding, Aduan, Quxian and Handong, and was also managed by Xining guards. This is the place of Heshuote Mongolia. In the third year of Yongzheng in the Qing Dynasty, Qinghai Mongolia left and right wing alliance 29 banners were formulated, and 9 Mongolian banners were designated in the prefecture, which were under the jurisdiction of the "Imperial Envoy to Handle the Minister of the Qinghai Mongolian Apostle Affairs". In the first year of the Republic of China, the Haixi region was under the chief officer of Qinghai Province. In the 19th year of the Republic of China (1930), the Dulan director was changed to Dulan County , which is under the jurisdiction of the entire territory of Haixi Prefecture, and is directly under the Qinghai Provincial Government.
Qinghai was liberated in September 1949. In November of the same year, the People's Government of Dulan County (located by Chahan Wusu) was established, which governs the entire territory of Haixi Prefecture and is directly under the jurisdiction of the provincial government of Zhili. On September 26, 1952, Dulan County was abolished and the county-level "Dulan Mongolian-Tibet Kazakh Autonomous Region" (located Chahan Wusu).
Haisi Mongolian and Tibetan Kazakh Autonomous Region was established on January 25, 1954, and the Autonomous Region People's Government stationed in Chahan Wusu, Dulan Mongolian Autonomous Region. It has jurisdiction over the Dulan Mongolian Autonomous Region (settled from some areas of the former Dulan County Autonomous Region, equivalent to county level), Tianjun Tibetan Autonomous Region (settled from some areas of the former Dulan County Autonomous Region, based in Naihai, Tang Dynasty. It is equivalent to county level), and Alton Quk Kazakh Autonomous Region (in December 1953, the former Guolimao Kazakh Autonomous Region of Dulan County was renamed Alton Quk Kazakh Autonomous Region, based in , Golmud , equivalent to district level).
On December 12, 1955, the Haixi Mongolian-Tibet Kazakh Autonomous Region was reorganized into the Haixi Mongolian-Tibet Kazakh Autonomous Prefecture, and the People's Committee of the Autonomous Prefecture was stationed in Chahan Wusu, Dulan County. The original Dulan Mongolian Autonomous Region was renamed Dulan County (located in Xiangride Town ), and the original Tianjun Tibetan Autonomous Region was renamed Tianjun County (located in Genahai). On October 23 of the same year, the Golmud Temporary Working Committee was established, stationed in Golmud, and was under the leadership of the Qaidam Working Committee. Haixi, Mongolia, Tibet Kazakh Autonomous Prefecture has two counties under its jurisdiction and Alton Quk Kazakh Autonomous Region (a district-level administrative unit directly under the autonomous prefecture).
In 1956, Delingha Temporary Working Committee was established, stationed in Bayinhe ; Haixi, Mongolian, Tibetan and Kazakh Autonomous Prefecture has two counties and one working committee. In 1958, the Delingha Temporary Working Committee was abolished and the Delingha County was renamed; in November of the same year, the county-level tea card working committee was established to lead the tea card , which was originally belonged to Dulan County, and the four townships of Nan Keke, Bei Keke, Wangjia and Xiligou. The Chaka Working Committee is located in Xiligou and is under the leadership of Haixi Mongolian and Tibetan Kazakh Autonomous Prefecture; Haixi Mongolian and Tibetan Kazakh Autonomous Prefecture has 3 counties and 1 working committee.
In 1956, the Qaidam Basin Working Committee was established, stationed in Dachaidan. It governs 4 working committees, including Mangya, Golmud, Tanggula Mountain (located in hot springs), and Mahai. In 1957, the Qaidam Basin Working Committee was abolished and the Qaidam Basin Administrative Committee was renamed. It still governed the Mangya, Golmud, Tanggula Mountain (located in hot springs), and Mahai4 working committees. In 1958, the Qaidam Basin Administrative Committee was renamed the Qaidam Administrative Committee.
In 1959, the People's Committee of Haixi, Mongolia and Tibetan Kazakh Autonomous Prefecture and the Qaidam Administrative Committee jointly operated in Dachaidan . The tea card working committee was abolished and the , Wulan County (located in Xiligou); the county-level temporary working committee of Lenghu City (located in Lenghu). The Dulan County resident was moved from Xiangride Town to Chahan Wusu; the Tianjun County resident Genahai was renamed Xinyuan; the Mangya Working Committee was moved from Mangya to Yousha Mountain; the Tanggula Mountain Working Committee was moved from Torto Riverside.
In 1960, Dachaidan City was established in some areas of the Mahai and Golmud Working Committee; Lenghu City was abolished and Lenghu City was established; Golmud Working Committee was abolished and Golmud Working Committee was abolished and Golmud City was established in some areas of the former Golmud Working Committee. It has 3 cities, 4 counties and 3 working committees.
In 1962, Delingha County was abolished and merged into Ulan County. In 1963, Haixi Mongolian and Tibetan Kazakh Autonomous Prefecture was renamed Haixi Mongolian and Tibetan Kazakh Autonomous Prefecture . The People's Committee of the Autonomous Prefecture was moved from Dachaidan City to Delingha, Ulan County.The Qaidam Administrative Committee was abolished, and the three cities of Dachaidan, Lenghu, Golmud, and Ulan , Dulan, and Tianjun 3 counties were assigned to Haixi Mongolian and Tibetan Kazakh Autonomous Prefecture. The autonomous prefecture has three cities, including Dachaidan, Lenghu and Golmud, three working committees: Ulan (station in Xiligou), Dulan (station in Chahan Wusu), Tianjun (station in Xinyuan), and Mangya (station in Yousha Mountain), Mahai and Tanggula (station in Toto Heyan).
In 1963, the Qaidam Administrative Committee was abolished, and the three cities of Dachaidan, Lenghu, Golmud, and Ulan, Dulan and Tianjun belonging to the former Qaidam Administrative Committee were assigned to Haixi Mongolian and Tibetan Kazakh Autonomous Prefecture.
In 1964, Lenghu, Dachaidan and Mahai and Mangya work committees were abolished, and Lenghu, Dachaidan and Mangya towns were established in the three areas of Lenghu, Dachaidan and Mangya, respectively, and were directly led by Haixi Mongolian and Tibetan Kazakh Autonomous Prefecture. Mahai area is classified as the leader of Lenghu Town . The Tanggula Mountain Working Committee was abolished and incorporated into Golmud City. Haixi Mongolian and Tibetan Kazakh Autonomous Prefecture has governed Golmud City and Ulan, Dulan and Tianjun counties.
In 1965, Golmud City was abolished and Golmud County was renamed. Haixi Mongolian and Tibetan Kazakh Autonomous Prefecture has four counties: Ulan (located in Xiligou), Dulan (located in Chahan Wusu), Tianjun (located in Xinyuan), and Golmud. In April 1966, the prefecture was moved from Dachaidan to Delingha .
In May 1984, according to the minutes of the symposium of the Qinghai and Xin provinces (regions), all Kazakhs and Hitchen people in the prefecture moved back to Xinjiang. The State Council approved it on April 24, 1985 (National Letter [1985] No. 60), renamed Haixi Prefecture to Haixi Mongolian and Tibetan Autonomous Prefecture, and was officially renamed on May 21.
On April 19, 1988, the Ministry of Civil Affairs approved (Ministry [1988] Xingpin No. 1) to establish Delingha City (county level), with the five townships of Delingha Town and Waitatoula, Gobi, Guolimu, Zongwulong and Zuji in Ulan County as the administrative areas of Delingha City.
In 1999, Haixi Prefecture has two cities (Golmud, Delingha), three counties (Dulan, Wulan, Tianjun), and three administrative committees (Mangya, Lenghu, Dachaidan Administrative Committee), with a total of 43 townships and 3 street offices. The total population is 312,300.
In 2000, according to the Fifth National Census data: the total population of Haixi Prefecture is 332,094. Among them: 135,897 people in Golmud City, 83,585 people in Delingha City, 36,015 people in Ulan County, 57,670 people in Dulan County, 18,927 people in Tianjun County, Dachaidan (4,405 people in Dachaidan Town, Xitieshan Town, 3,431 people in Yuka Township, 1,105 people), Lenghu (2,185 people in Lenghu Town), Mangya (11,131 people in Huatugou Town, Mangya Town, 5,213 people in Gas Township, 164 people).
On February 21, 2001, Qinghai Provincial People's Government Qingzheng Letter [2001] No. 11 approved: ① Abolish Huaitou Tala Township, Delingha City, and establish Huaitou Tala Town ; Guolimu Township was abolished, and established and named Gahai Town (the town government is located in Gahai). ② The two townships of Tianpeng and Guanjiao in Tianjun County were abolished, and merged to establish and named Xinyuan Town (the town government is located in Tianjun County County). ③Abolish Xiariha Township, Dulan County and establish Xiariha Town . ④Banyin Township, Ulan County was abolished and incorporated into Chaka Town . ⑤ Move the seat of Shengge Township Government of Tianjun County to Yematan (451 kilometers from Qingxin Highway).
On August 9, 2001, Qingzheng Letter [2001] No. 81 of the Qinghai Provincial People's Government approved: Golmud City established the Dongcheng Administrative Committee, the Xicheng Administrative Committee and the Charhan Administrative Committee as the dispatched agencies of the Municipal People's Government. At the same time, the implementation of Document No. 21 of Qingzheng Letter [1997] was stopped.
At the end of 2002, Haixi Prefecture had 3 streets, 14 towns, 27 towns, 263 village (animal Husbandry) committees, and 32 neighborhood committees. At the end of 2003, Haixi Prefecture had 8 streets, 14 towns, 27 townships, 277 village (animal Husbandry) committees, and 63 community neighborhood committees.
