Tang Fan and Qin made a certain period of border peace militarily, and the people were able to recuperate. Politically, the relationship between Han and Tibetan nationalities was adjusted, which created a good external environment for the development of Tang Dynasty and Tubo. In terms of economic and cultural life, it has promoted the economic and cultural development and exchanges between the two countries.

Brief introduction of Tang Fan and Qin.

At the beginning of the 7th century, Songtsan Gambu acceded to the throne, unified the Qinghai-Tibet Plateau, and Tubo gradually became stronger. At that time, the economy of the Tang Dynasty was prosperous and the culture was developed. The surrounding ethnic minorities sent envoys to pay tribute to the Tang Dynasty and were proud of their marriage with the imperial clan of the Tang Dynasty. For the sake of social stability and friendship among all ethnic groups, Emperor Taizong also vigorously promoted the in-laws policy. He married his sister Princess Hengyang to Turkic, and Princess Honghua to Tuyuhun Khan, thus establishing a friendly relationship between the Tang Dynasty and Turkic and Tuyuhun.

Tang Fan and Qin's Role

1. Militarily, the border areas have achieved a certain period of peace and the people have been able to recuperate;

2. Politically adjusted the ethnic relations between Han and Tibetan, creating a good external environment for the development of Tang Dynasty and Tubo;

It has promoted the economic and cultural development and exchanges between the two countries in economic and cultural life.