The demise of the Yuan Dynasty was mainly due to its political darkness, ethnic discrimination and political oppression. The political situation within the ruling clique is unstable. Most emperors ignored national politics, were greedy for pleasure and were extremely corrupt. After intrigue among ministers, the imperial court imposed exorbitant taxes and levies, and the economy declined day by day, which aroused the resistance of the broad masses of the people. Peasant uprisings all over the country were directed at the Yuan Dynasty. The Yuan Dynasty declined before the historical trend. Emperors changed frequently in the middle of Yuan Dynasty, from 1307 (the 11th year of Dade) to 1333 (the first year of Yuan Dynasty), only 36 emperors changed, all of which were short-lived. All powerful ministers tampered with imperial edicts or issued imperial edicts. The emperor became a puppet and could not make major decisions. The imperial court fought constantly, and intrigue sometimes appeared. Coupled with the backward economy, the broad masses of the people are in dire straits, especially the farmers in the Central Plains, who are hungry and cold, and their severity has reached an unbearable level. In this way, the people were forced to rebel, and the peasants held an uprising, putting forward the slogan of "expelling Land Rover, restoring China, establishing innocence and relieving the Sri Lankan people" and pointing the finger at North Korea. At the end of Yuan Dynasty, timur was in power for a long time. 1June 333 (the first year of Tong Yuan) to1July 368 (the twenty-eighth year of Zheng Zheng) was in the period of ***35 years, during which the peasant rebels attacked and the Yuan army resisted. However, the reason why the Yuan army was defeated in such a long time was not that the generals were capable and the soldiers were not brave, but that the Yuan regime failed to cultivate politics and promote the economy, which was the result of endless internal struggles for power and profits and killing each other. In particular, Shun Di was a bad king who changed his mind, broke his word and disobeyed the minister's heart. Therefore, the King of Song Dynasty and the leaders of local forces refused the imperial edict and did not send troops to participate in the war at the critical moment, which led to division. No matter which dynasty, the destroyed gangs are nothing more than the corruption of the court, the struggle for power and profit among ministers, the killing of each other and the fatuity of the monarch. This can also be said to be a basic law of national demise. The Yuan Dynasty was not strategically sensitive and did not carry out an organized counterattack. When farmers from all parts of China organized an uprising against the Yuan Dynasty, the court was still engaged in internal disputes, cheating and indulging in debauchery, turned a deaf ear to the turmoil outside, and did not expect that the rebels would further ruin the Yuan Dynasty. Even when the peasant rebels in famous places proclaimed themselves king, the imperial court did not have well-thought-out countermeasures and could not take strategic measures. It only occasionally issues decrees to fight or suppress local troops. In the battle, Yuan troops scattered around the country did not carry out planned and organized joint operations, but fought separately, such as Chahan Timur and Li Siqi, who fought separately and did not unite with each other. Later, they fought for each other's territory; The Tujian Timur army did not jointly fight to expand Timur, but entered the capital twice; Arghun Timur, the king of Yangzhai in Mobei, refused to listen to your orders, and he was ambitious to seize the position of Shun Di, which proved that the Yuan army was weak and the country was ruined. The Yuan Dynasty failed to grasp the low tide of the peasant uprising army in time and organized a counterattack. Strategically promoted opportunities. 1354 September (June 14th), Tuotuo led a million troops and besieged Gaoyou City in November. Mr. and Mrs. Zhang Shicheng are dying and about to surrender. Shun Di suddenly issued a letter to relieve the command of his million-strong army, which saved Zhang Shicheng from danger. This was a big mistake of Yuan Ting, and the consequence was that millions of troops were scattered, the Yuan army was weakened, and the peasant troops in various places turned from low tide to high tide. Another opportunity for the Yuan Army to push forward the strategic counterattack was in the spring of 1363 (the 23rd year of Zheng Zheng), when Lin Er and Futong failed in Dasong, and the insurgents attacked each other. For example, in the spring of 23rd, Zhang Shicheng was killed, and the Red Scarf Army of Dasong was killed. In autumn, Zhu Yuanzhang killed Chen Youliang, and a series of Red Scarf armies were defeated in the Han Dynasty. Just then, the Yuan Army failed to organize a counterattack against Zhu Yuanzhang's department. Instead, it was a scuffle between warlords and a battle for kings in the Yuan Dynasty. In this way, the Yuan Dynasty gave Zhu Yuanzhang a good opportunity and favorable conditions for his northward demise.