《宋史》将大理国与交趾(元之安南)同列为《外国传》,这是宋人的看法,亦是后来元人的态度。宋朝之前,大理国和越南同属于中原王朝的郡县,宋朝立国后,大理国和越南都建立起了独立的地方政权,元以后,大理国和越南分别走上了不同的发展道路,乃至到清朝后半期法国入侵后,越南正式脱离中国版图成为东南亚地区独立国家之一。历史上,中原王朝的治策对中国边疆的发展以及中华民族的 “History of the Song” Dali Kingdom and Cochin (Yuanan Annan) with the “foreign”, which is the views of the Song, also later attitude of the people. Before the Song Dynasty, Dali Kingdom and Vietnam both belonged to the counties and counties of the Central Plains dynasty. After the founding of the Song Dynasty, both the Dali Kingdom and Vietnam established independent local governments. After the Yuan Dynasty, Dali Kingdom and Vietnam embarked on different development paths, respectively After the French invasion in the second half of the Qing Dynasty, Vietnam officially departed from the territory of China and became one of the independent countries in Southeast Asia. Historically, the policy of the Central Plains dynasty had taken the development of China’s frontier and the Chinese nation