But another characteristic of Wu Zetian's rule was strong control, mainly the severe suppression of Xu Jingye and other opposition, the massacre of Tang princes, and the ministers and generals who supported the Tang Dynasty. Encourage whistleblowers, spy on officials and princes, and promote the system of cool officials. Support Wu Sansi, Shangguan Wan'er and other henchmen.

In his later years, Wu Zetian listened to Di Renjie's advice and re-established Li Xian as the crown prince and Li Dan as the prime minister. When Zhang Cambodia said this, the Zen master must have interjected, "I heard that in addition to Di Renjie's advice at that time, there were also Zhang Cambodia and other ministers. ”

Zhang Cambodia: "Yes, the master is right. ”

The Zen master continued:

In 705, when Wu Zetian was seriously ill, the prime minister Zhang Khan Zhi and the general Li Duozuo and others supported the crown prince Li Xian to launch a coup d'état, and they killed the empress's male favorite Zhang Yizhi's brother and forced Wu Zetian to abdicate. Zhongzong Li Xian Chongzuo, the Tang Dynasty was restored, and his brother Li Dan was named the king of Anguo, and his sister Princess Taiping was the princess of Zhenguo Taiping.

Zhongzong was quite inexperienced in his rule, and during his reign, he was politically corrupt and greedy. He was bewitched by Empress Wei, his daughter Princess Anle, and Wu Sansi, a member of the Wu clan, and others, and exiled and killed the heroes Zhang Cambodia and Jing Hui. Empress Wei and Princess An Le are ambitious and want to become Wu Zetian's second. They teamed up with Shangguan Wan'er to force the crown prince Li Chongjun to launch Chongjun's rebellion, and Chongjun was finally defeated and killed.

In 710, Empress Wei and Princess Anle poisoned Zhongzong, and Li Chongmao, the king of Wen, was appointed emperor, that is, the emperor of death, and planned to harm the king Li Dan. Li Dan's son Li Longji, with the assistance of his aunt Princess Taiping, launched the Tanglong Rebellion, exterminated the forces of Empress Wei and the Wu clan, and supported the restoration of Ruizong Li Dan as emperor. After Ruizong was reinstated, he appointed his son Li Longji as the crown prince and agreed to his sister Princess Taiping to intervene in the political situation, and power struggles often broke out between the two sides.

In 712, Ruizong decided to give up the throne of Chan, and the crown prince Li Longji ascended the throne, that is, Xuanzong of Tang. However, Xuanzong declared that Princess Taiping was preparing to mutiny with the Yulin Army again. The following year, Xuanzong sent troops to kill Princess Taiping and her henchmen, and the heroine politics of the Tang Dynasty since Wu Zetian came to an end.

The Xuanzong period of the Tang Dynasty can be divided into two parts: Kaiyuan and Tianbao, of which the politics of the Kaiyuan period are relatively clear. At that time, the politics of the Tang Dynasty were becoming more and more corrupt, and Tang Xuanzong proposed to take Wu and Wei as a precept and Zhenguan as an example as the guiding ideology of the government. He successively appointed Yao Chong, Song Jing, Lu Huaishen, Zhang Jiuling and Han Xiu and other virtuous ministers, and widely accepted advice. For example, Zhang Jiuling's suggestion was adopted, and the capable people in the Beijing officials were transferred to the Governor Assassin Shi to train his administrative ability, and the promising Governor Assassin Shi was promoted to the Beijing official. Enhance communication, understanding and trust between the central and local governments. Reduction of redundant officials such as foreign officials during the Wu Zhou Zhongzong period, and streamlining the organization in order to save expenses and improve administrative capacity.

Strictly enforce the law, restrain the powerful, and bring to justice even if the emperor's relatives commit crimes. It has a good impact on stabilizing social order. Strengthen the implementation of the uniform land system and crack down on local tyrants. We should develop agricultural production, build water conservancy projects, expand the area of cultivated land, and greatly enhance agricultural productivity.

Externally, China improved its relations with Tibet, the Eastern Turks, and the Khitan and Xi, and pursued a policy of peace and proximity.

Follow the advice of Yao Chong and Song Jing to strengthen the border defense and avoid wars with foreign tribes. These measures enabled the Tang Dynasty to enter its second heyday, with a large increase in population and abundant products, known as the reign of Kaiyuan.

At that time, not only the Central Plains, Jianghuai region and the CD Plain were economically developed, but even the small population of the Longyou Hexi region gradually prospered.

During the Tianbao period, Tang Xuanzong was complacent, indulged in pleasures, did not ask about state affairs, and accepted his daughter-in-law Yang Guifei. At this time, the national politics were gradually chaotic, and Tang Xuanzong dismissed the virtuous minister Zhang Jiuling, and successively took Li Linfu and Yang Guozhong as the prime minister. Li Linfu had the notoriety of "mouth-to-mouth and belly sword", he blocked his words, excluded talents, and adopted the appointment of Fan generals, who were not good at literary talents, to put an end to the source of "going out and going out of the generals", so that the Tang court successively appointed Gao Xianzhi, Ge Shuhan, An Lushan and other border generals.