Politically: 1. Knowing people and being good at their duties is open-minded. The discerning eye knows people, and at the same time, it does not stick to one pattern in employing people, which improves the utilization rate of talents.

2. Pay attention to people's livelihood and rectify official management. Merge counties and counties.

Economically: 1. Build water conservancy projects and persuade farmers to cultivate mulberry trees.

2. frivolous and frivolous, avoid extravagance and simplicity.

Culturally: advocating the imperial examination and taking Confucianism as a teacher.

Militarily: 1. Pacify the Turks

2. Pacify Gaochang and set up "Anxi Capital Protection House"

Ethnic relations: She became attached to Tubo and Princess Wencheng entered Tibet.

External relations: 1. Xuanzang went west to learn from the scriptures.

2. Foreign exchanges with Japan and Silla.

3. Maintain the Silk Road and promote the economic and cultural transmission between the East and the West.

Evaluation: From the perspective of an emperor, he made great contributions to the development of the Tang Dynasty. It is the most powerful creator of "Zhenguan Rule". He is a great politician, thinker and outstanding leader in the history of China.