In 64 1 year, Li Daozong, the king of Rencheng, as the distant envoy of Princess Wencheng, accompanied Lu Dongzan, the Tibetan envoy, to escort Princess Wencheng from the Tang Dynasty to Tubo. Princess Wencheng set out from Xi 'an, the capital of the Tang Dynasty, with many bodyguards, craftsmen, ladies-in-waiting, etc., and also loaded a lot of dowry such as medical skills, food, silks and satins. All the way to the west, through Gansu, Qinghai, Sun Moon Mountain, and finally to the source of the Yellow River. When Princess Wencheng and her party arrived in Baihai, Tibetan leaders went to Baihai to meet the bride. When they continued westward to reach Yushu, Qinghai, they stayed in Yushu Canyon for a month because of the long journey. During this month, Princess Wencheng taught the local people advanced agricultural planting techniques in the Tang Dynasty, which was welcomed by the local people. How long has Princess Wencheng been in Tibet? From here, they moved on and finally arrived in Lhasa after half a year.
The story of Princess Wencheng's entry into Tibet has been circulated for thousands of years. Her contribution to the development of people in Xizang, the stability of the frontier and the unity of the Li Tang nation is remembered and praised by people. Her contribution is an important one in Li Tang's diplomatic history, which is admired by later generations. In the fifteenth year of Zhenguan, Emperor Taizong ordered his younger brother Li Daozong, the father of Princess Wencheng, to send Princess Wencheng to Tibet to kiss and marry Tubo Zanpu Songzangambu as the queen. There are many records in historical materials and many legends among the people about the story of Princess Wencheng after she entered Tibet. In fact, Princess Wencheng really devoted herself to the communication between Tubo and Tang Dynasty, and the friendship between Tang and Fan was greatly developed. Princess Wencheng's erudition has a great influence on Tibetan civilization. The most famous thing is that Songzan Gambu, at the suggestion of Princess Wencheng, ordered the abolition of the long-standing custom of making noodles and sent the children of Tubo nobles to Chang 'an to study and live, and learn the advanced knowledge and etiquette culture of the Han nationality.
After Princess Wencheng entered Tibet, she taught people in Xizang the medicine, planting, textiles and books of the Tang Dynasty without reservation, which not only helped the Tang Dynasty to consolidate the frontier defense of the western border, but also benefited the people on the border, and spread Chinese culture, advanced skills and science to Tibet. Tibet's economy and culture have developed by leaps and bounds. Princess Wencheng did not leave Tubo after Songtsan Gampo died. She continued to devote herself to strengthening the friendly relations between the Tang Dynasty and Tubo until her death. The story of Princess Wencheng's entry into Tibet and her historical achievements in promoting Tibetan culture have been remembered and praised by people, and are still widely circulated among Han and Tibetan nationalities in various forms such as drama, murals and legends.