有唐一代,漠北铁勒族群与唐朝的政治、经济和文化联系极为紧密,其中的回纥部尤为突出。回纥部三次南迁内地就充分说明历史实情。每当漠北地区出现重大变故(战乱或灾荒),回纥部首先选择度漠南迁寻求中央政府的扶持。但是,唐代回纥部三迁内地的具体情况并未为后世多数学者所明了,实有探讨的必要。因为,回纥三次内迁之举对研究边疆民族史、隋唐史、中国北部边疆史和边疆民族历史地理皆具有重要 In the Tang Dynasty, the political, economic and cultural ties between Tiele ethnic groups in Mobei and the Tang dynasty were extremely close. Returning to the south three times to relocate the mainland to fully explain the historical facts. Whenever a major accident (war or famine) occurred in the Mobei area, the Ministry of Housing and Development first chose to relocate to seek the support of the Central Government. However, the specific circumstances of the three trips to the Mainland by the Hui Department of the Tang Dynasty have not been clearly understood by most scholars in the future and have been explored in real terms. This is because the move of returning to Tibet within three times is of great importance in studying the history of the frontier nation, the history of the Sui and Tang Dynasties, the history of the borderland in the north of China, and the history and geography of the borderland nation