In 846, Tang Wuzong died, and the eunuchs struggled for power, and his uncle Li Chen ascended the throne with the support of the eunuch Ma Yuanzhen, that is, Tang Xuanzong.

Due to the loss of power of the Li Party, Li Deyu was deposed to Yazhou (, thus ending the 40-year Niu Li Party dispute.

On the surface, Tang Xuanzong was a monarch who was easy to be used by eunuchs, but after he ascended the throne, he made great efforts to strengthen the imperial power and suppress the power of eunuchs.

However, Tang Xuanzong was suspicious and scrutinistic, which made the upper and lower levels whitewash the peace; He worships Taoism and has always hoped to be able to live forever by taking pills.

In 859, Tang Xuanzong died due to overtaking of pills. In fact, the temporary rule of Dazhong is not stable.

In Tang Xuanzong's later years, there was already chaos in the country, and a rebellion broke out soon after his death. After the death of Tang Xuanzong, Tang Yizong and Tang Xizong, who were emperors one after another, were famous unscrupulous monarchs, which made the national power of the Tang Dynasty go downhill.

Political corruption, the social gap between the rich and the poor was too large, many rebellions occurred one after another, and the Jiangnan region, the economic lifeblood of the Tang Dynasty, was also completely destroyed, which completely shook the regime, and also gave rise to new feudal towns such as Li Guochang and Zhu Quanzhong.

In 859, Tang Yizong succeeded to the throne, he was arrogant and lascivious, and favored eunuchs; And he believes in Buddhism. In order to worship the Buddha, he did not hesitate to cut military spending.

After 860, the Qiu Fu Rebellion, Pang Xun's Rebellion and Wang Ying's Rebellion occurred one after another. Among them, Pang Xun's change destroyed the economy of the Kanto region, thanks to the leader of the Shatuo army, Zhu Xiechixin, who led the army to help the war, and Zhu Xiechixin was named Li Guochang for his merits.

In 873, Tang Xizong succeeded to the throne, and he was a man who specialized in cockfighting, ignoring the government and politics, and a greater rebellion was born in the north.

Due to the continuous floods in the Kanto region and political corruption, the price of salt has risen sharply, and thieves continue to operate. In 874, Wang Xianzhi gathered people in Changhuan to start an uprising, and the next year captured the western part of Shandong and wandered around Huainan in Henan, gaining momentum.

In 878, Wang Xianzhi died in battle at Huangmei, and the rest of the army broke up and defected to Huangchao. Huang Chao went south from Haozhou to plunder the Jiangnan and Lingnan regions, slaughtered along the way, and captured the commercial city of Guangzhou, and the economy of South China was almost completely destroyed.

In 879, because the army suffered from the plague, Huang Chao led the army through Guizhou and along the Xiangjiang River to the north and returned to the south of the Yangtze River.

The following year, Huangchao officially marched westward and captured Luoyang and Tongguan. The eunuch Tian Lingzi fled to Sichuan with Tang Xizong, and Huang Chao established the country after entering Chang'an.

The divisions of the Qin King in various places were also unorganized, and the recovered Chang'an was recaptured by Huangchao. The Tang family had no choice but to pardon Li Guochang, Li Keyong, father and son, who defected to Mobei, and Li Keyong led the Shatuo army to assist the Tang army in recovering Chang'an.

On the other hand, Huang Chaobu surrendered Zhu Wen, gave him the name Zhu Quanzhong, and was awarded the title of Xuanwu Jiedu envoy (governing Bianzhou).

Huang Chao went east and surrounded Zhu Quanzhong to Chenzhou. In 884, Li Keyong led his army to relieve the siege of Chenzhou and pursued the Huangchao army.

Huang Chao was killed and surrendered by his nephew Lin Yan the following year, and the rebellion of Huang Chao was pacified. Then, Huang Chao's general Qin Zongquan rebelled, led the army to attack and plunder in the Central Plains, and once captured the eastern capital, which caused

The situation of "thousands of miles of eyes and no fireworks" was not pacified by Zhu Quanzhong until the time of Tang Zhaozong. After the pacification of the people's uprising, the Tang dynasty was counterattacked by the Guanzhong Domain because of the decline of national strength.

In order to fight politically, the eunuchs and the outer court also attracted the feudal towns to join the war, and finally it evolved into various feudal towns competing for the imperial court.

These feudal towns were the strongest in Hedong, Li Guochang, Xuanwu, Zhu Quanzhong, and Fengxiang and Li Maozhen. After Tang Xizong returned to Beijing in 885, he still trusted the eunuch Tian Lingzi.

Tian Lingzi and Hezhong Jiedu made Wang Chongrong bitter, and both sides won over the feudal towns and confronted them.