In the second year of Jianzhong (781), Pinglu and Ziqing Jiedu made Li Zhengji sick and died, and his son Li Na secretly did not send the news of the blockade and led the army and government.

In August, Tang Dezong intended to eliminate the situation of separating feudal towns in the middle and late Tang Dynasty, so he did not allow it, and Li Na rebelled against the imperial court.

Li Na sent his general Gao Yanzhao to defend Puyang, in October, Li Na attacked Songzhou (now Shangqiu County, Henan), and sent his general Wang Wen together with Wei Bojiedu to make Tian Yue's general Xindu Chengqing to attack Xuzhou (Zhipengcheng, now Xuzhou City, Jiangsu), Xuzhou Assassin Shi Li Yu led troops to resist, the imperial court ordered Liu Xuanzuo, who was then the envoy of Xuanwu Jiedu, and Quhuan, the general of the Shence Army, to reinforce Li Wei, defeated it, and opened up the southeast Caoyun, known as the battle of Tang to attack Li Na Xuzhou.

In the third year of Jianzhong (782), Tang Dezong ordered Li Xilie, the envoy of Huaixi Jiedu, to concurrently serve as the envoy of Pinglu and Ziqing Jiedu, and was ordered to conquer Li Na, who was plotting rebellion against Ziqing.

However, Li Xilie, considering his own interests, not only did not move, but conspired with Li Na and colluded with the rebellious Hebei feudal towns.

When Li Na wanted to rebel, he wanted to make friends with Liu Xuanzuo, the envoy of Xuanwu Jiedu, who had heavy troops. Whenever Li Na's envoy came here, Xuan Zuo was there

"Treat him well", he is silent on the surface, but he has long been aware of Li Na's misdeeds and has been prepared first.

Later, Li Na really rebelled, and Liu Xuanzuo besieged Li Na in Puzhou (now Juancheng, Shandong) and defeated Li Na's army.

Seeing that the defeat was irretrievable, Li Na decided to break through and retreat to Yunzhou (now northeast of Dongping). The Huaixi Jiedu, who had been standing still before, made Li Xilie falsely crusade against the imperial court, but in fact, he secretly had an affair with Li Na, and he knew in his heart that he was the next target to be attacked.

Seeing that Li Na had been defeated by Liu Xuanzuo, Li Xilie stepped up his secret preparations and plotted a rebellion. At this time, although Liu Xuanzuo, who was the envoy of the Xuanwu Festival, held the Xuanwu army, he was also aware of Li Xilie's possible intention to rebel, and reported the information obtained to the imperial court in time.

Originally, the strategy formulated by the imperial court was that Li Xilie and Liu Xuanzuo would work together to attack Li Na's rebels, but Li Xilie found various reasons to prevaricate, observe the situation without moving, and secretly support the rebels.

Anyone with a discerning eye can see that Li Xilie has a different heart, but Li Xilie is also the envoy of the three regions of Huaixi, Pinglu and Ziqing, with 200,000 elite troops, and his strength is very strong.

The imperial court was also quite jealous, and on the one hand appointed Liu Xuanzuo to continue to monitor Li Xilie's movements, and on the other hand, it adopted a policy of appeasement, intending to slowly weaken Li Xilie's strength.

A year later, in the fourth year of Jianzhong (783), the most powerful Jiedu of the Tang Dynasty made Li Xilie rebel and sent an army to attack Bianzhou, proclaiming himself Emperor of Chu.

Because Liu Xuanzuo had already made preparations and had proper tactics, he desperately repelled Li Xilie, and Bianzhou did not fall into the hands of the rebels.

It was a time when the situation was improving, but at this time, there was an unexpected incident that no one thought of breaking the earth, Chang'an, the capital of the Tang Dynasty, mutinied, which changed the history of the Tang Dynasty and was no less harmful than the Anshi Rebellion

The "Jingyuan Mutiny" incident. After the Jingyuan Mutiny, the mutinous rebels immediately captured Chang'an, and Tang Dezong was forced to leave Chang'an and flee to Fengtian (now Qianxian County, Shaanxi), and was surrounded by the mutinous rebels for more than a month.

At this time, the people's hearts were shaken, and Li Xilie took the opportunity to continue to attack Bianzhou, and when the situation was extremely critical, the heroic and loyal Xuanwu Jiedu made Liu Xuanzuo lead his troops to fight to the death, and won many victories, saving the Tang Dynasty from danger, and was named the envoy of the Biansong Festival.

Soon after, the Jingyuan army became pacified, and Li Xilie was defeated. Tang Dezong returned to Chang'an and crowned Liu Xuanzuo as the commander of all the armies in Chenzhou, and gave the name Liu Xuanzuo to show his favor.

In the same year, Liu Xuanzuo personally entered the court to pay tribute, and was once again crowned as the deputy marshal of the soldiers and horses of the Beiting and other provinces of Jingyuan Four Towns, inspected the school, and sealed 800 households.

In the eighth year of Tang Zhenyuan (792), Liu Xuanzuo died in office at the age of 58.