The marriage between Tang and Tubo is a form of diplomatic marriage, which occupies an important position in the history of China. The affinity between Tang and Tibet not only enhanced the friendly relations between the two countries in politics, economy and culture, but also greatly promoted the development and rule of Tibet in the Tang Dynasty.

First of all, Tang Fan and Qin Wei in the Tang Dynasty provided a way to expand the southwest territory and advance westward, and strengthened their control over the southwest. Through marriage, the Tang Dynasty and Tubo reached a mutually supportive relationship, which increased the political stability of the Tang Dynasty's rule over the southwest region.

In addition, the supply and trade of Tubo to the Tang Dynasty was consolidated and developed with the closeness of Tubo to the Tang Dynasty, which strengthened the economic control of the Tang Dynasty to the southwest region.

Secondly, the affinity between Tang and Fan also promoted the exchange and integration of Chinese culture and Tibetan culture. China culture and Tibetan culture have different traditions and cultural values. Through the cross-cultural exchanges between Tang Dynasty, Fan Dynasty and Qin Dynasty, the two cultures interacted and merged in the fields of language, religion, art and literature, which promoted the cultural exchange and integration and played a positive role in promoting the development of Chinese culture and Tibetan culture.

Generally speaking, the friendly relationship between Tang and Tubo not only created a good environment for the peaceful coexistence between Tang and Tubo, but also brought great historical significance to the mutual benefit between China and Tibet. At the same time, Tang is also one of the profound cultural and artistic heritages of the Chinese nation, which has been widely passed down and carried forward.