(1) Setting up administrative organs in minority areas: In the Tang Dynasty, Anxi and Beiting were both protective houses in the western regions.

(2) adopting the policy of kinship: Princess Wencheng and Princess Jincheng were related to Tubo Zampa in the Tang Dynasty.

③ Strengthening economic and cultural exchanges: sericulture and vegetable cultivation techniques were introduced to Tubo in the Tang Dynasty.

(4) Conquering a few nobles who invaded the frontier; When Emperor Taizong sent troops to defeat East Turkistan and captured Li Jie Khan alive.