在唐代 ,我国西部地区的行政区划曾发生过一系列显著变化。这些变化主要体现在关内、陇右、剑南三道所辖州县的增置、省废、改隶 ,州县名称的更改、治所的迁徙、等级的升降 ,以及羁縻府州的变化。引起这一变化的原因主要是西部地区的政治、经济、文化以及社会的不断发展变迁而导致的。 In the Tang Dynasty, a series of significant changes took place in the administrative divisions of the western region of our country. These changes are mainly reflected in the relocation of prefectures and counties under the jurisdiction of Guanzhong, Longyou and Jiannan, changes in the names of prefectures and counties, the relocation of prefectures and counties, the relocation of places of governance, the rise and fall of the rank, and changes in the state of Jimi prefectures. The main reason for this change is the political, economic, cultural and social changes in the western region.