The perfection of the educational system in the Tang Dynasty was during the reign of Emperor Taizong. During this period, in the first year of Zhenguan (627), Emperor Taizong set up Hong Wen Pavilion (converted from Xiuwen Pavilion) under his door, and collected more than 200,000 copies of four books: classics, history, books and collections. Yu Shinan, Chu Suiliang, Yao Silian and other world-famous scholars were selected as official bachelor, with Chu Suiliang as the main person. In the museum, I not only talk about the significance of papers and discuss politics, but also teach calligraphy and economics. The following year, books and arithmetic abandoned in the early years of Wude were restored. In the third year, the imperial edict went to the States to buy medicine. In the sixth year of Zhenguan (632), the martial arts abolished the law and resumed. In the 13th year of Zhenguan (639), Chongxian Pavilion was established in the East Palace (changed to Chongwen Pavilion in 676). After about 13 years, with the advocacy and support of Emperor Taizong and others, the official school system represented by "six schools and two libraries" was basically formed in the Tang Dynasty. At first, the Tang government called on all scholars in the world to build the 1200 campus, which greatly increased the number of students. In the thirteenth year of Zhenguan, in addition to six schools and two museums, students were also set up in military facilities such as camping and flying riding, and they were taught by doctors. Gaochang, Tubo, North Korea, Baekje, Silla and Japan also actively sent their children to study abroad, with a total of more than 8,000 students. In 656, Gao Zongxian set up a bachelor's degree in Chongxian Pavilion with 20 students. In the second year of Longshuo (662), imperial academy was located in the eastern capital, and the number of students increased. The teaching was divided into two parts. In the meantime, calligraphy, arithmetic and law were once abolished. After the restoration of Longshuo in the third year (663), calligraphy was changed to Lantai, arithmetic to Secretariat, and law to Detailed Punishment Hall. During the reign of Wu Zetian, she was keen on Buddhism and ignored Confucianism. At that time, "doctors and teaching assistants, only in the name of academic officials, were not elegant ... students no longer took Confucian classics as their righteousness and only hoped for luck." In twenty years, the school suddenly fell into disrepair. " After the restoration of Zhongzong, in the first year of Shenlong (705), students of Chinese studies were ordered to reunite, and in the following year (706), students were ordered to be lazy, which became the national system.