Zhu Yuanzhang's fundamental purpose is to further strengthen the monarchy of the United States, and the main method is to divide and weaken the power of ministers. He carried out a series of changes in local provinces, Chinese books and prefectures. The dismissal of Prime Minister Zhu Yuanzhang is a major change in the central political system in the past thousand years. There is no prime minister in the six departments, and the state affairs are directly handed over to the emperor for ruling. In fact, the emperor acted as prime minister. The emperor had to deal with more government affairs. It is said that Zhu Yuanzhang has to read more than 200 memorials and handle more than 400 political affairs every day, which is quite hard. As a result, the autocratic imperial power was unprecedentedly strengthened by Zhu Yuanzhang and became one of the strongest emperors in history. However, such a highly centralized imperial power will also have a negative impact, because there is no corresponding restraint mechanism, and the emperors in the middle and late Ming Dynasty did whatever they wanted, which was extremely decadent and even did not go to court for decades. Establish a secret service organization. Zhu Yuanzhang boldly guessed and strengthened the surveillance of ministers. At first, he sent some proofreaders, soldiers on horseback and others to investigate secretly. The minister had no right to arrest and interrogate him. The most famous spies at that time were Gao Jianxian, yang xian and Ling. They said they were prying into other people's affairs. Four people take watching as their profession; The Chief Inspector listens to the opinions of Beijing officials, and all government agencies in the United States, large and small, hear unfair and illegal things. Only these people, such as evil dogs, are afraid; Zhu Yuanzhang's purpose is very clear, that is, to make ministers loyal to themselves and Daming Mountain, to let them know their fears, and to prevent them from engaging in malpractices for personal gain and forming parties and chaos. Every detail and every parent's weakness was discovered by Zhu Yuanzhang. There is a very famous example that shows the horror scene at that time. Qian Zai was recruited to write a poem about Mencius Festival, and when he came home, he wrote a poem: It was too late to appear before the noon gate. When can I enjoy pastoral music and sleep until the world matures? The next day, Zhu Yuanzhang told him that his poems were not bad yesterday, but there was no doubt; He is late, so he might as well change it to; Worried; Words are better. Qianzai was surprised and kowtowed to apologize. There are many similar cases. Ministers are on pins and needles, and even heroes like Li Shanchang and Xu Da are at stake. In the fifteenth year of Wu, Zhu Yuanzhang set up a special spy agency, and strengthening surveillance became an important means for him to carry out spy politics, which also formed the famous spy politics in Ming Dynasty in history. Royal Guards belong to the emperor's pro-military system, with a general commander and subordinate official schools. There are thousands of officials and hundreds of households, and the school is a captain. Because riding a horse in orange clothes, it is also called; Ride; Early Ming dynasty; Riding a horse; There were only a few hundred people, reaching several hundred thousand in the middle and late Ming Dynasty. The Royal Guard consists of the Zhen Fu Department, with wooden seals of prisons and courts on it, becoming; Imperial edict; Directly subordinate to the emperor, it has great power. Royal guard; Guard, arrest, prison affairs; Mao, all the felons caught in Beijing have been put in prison. There were more prisons, and many of them were released, so many of them were killed. Zhu Yuanzhang set up a Royal Guards, which gave a bad start to the later emperors of the Ming Dynasty. In the 18th year of Yongle, Emperor Judy of Chengzu set up an East Factory outside the Royal Guards, because it was located in Dong 'anmen. In the 13th year of Chenghua, Xian Zong set up the Western Region Factory, which was led by Wang Zhi. At the beginning of Dechen, Yan Jin set up an inner factory, which was led by him personally, with wide authority, although the East Factory and the West Factory were also within the scope of investigation. In Zheng De's fifth year, Barbie's crazy party II was abandoned together with Liu Jin. At the end of the Ming Dynasty, the West Factory and the Inner Factory did not exist for a long time, but the Royal Guards and the East Factory survived until the Ming Dynasty. These secret service agencies became an important means to safeguard the imperial power.

Jinling, with the Yangtze River moat in the north, is a bustling place. The Southern Dynasties' three kingdoms, Wu, Eastern Jin, Song, Qi, Liang, Chen, Five Dynasties and Ten Kingdoms' Southern Tang Dynasty all took it as their capital. First of all, Feng Xiangming's great-grandfather Zhu Yuanzhang suggested Jinling. Jinling, the imperial capital, first established itself, then conquered it, respected righteousness and won the hearts of the people, and did not covet the marriage of children. The world is uncertain. Tao An also suggested that Jinling should be taken first, and then surrounded on all sides according to the situation. Ye Dui also wrote to request Jinling as its capital, and then he could expand the territory of Jiangguang, March into Huaibei, invade Mongolia in the north, and retreat to the Yangtze River for self-defense. In the sixteenth year of Jacky, Zhu Yuanzhang listened to the words of his ministers, captured Jinling, renamed Yingtianfu, and built a palace, which laid the foundation for world hegemony. More than ten years later, Zhu Yuanzhang conquered the heroes in the south of the Yangtze River. In the first month of the first year of Wu Hong, Zhu Yuanzhang proclaimed himself emperor in Yingtian and made his capital Yingtian. However, Zhu Yuanzhang only temporarily affirmed the status of the capital of the United States and did not formally establish the capital. Why did Zhu Yuanzhang refuse to build his capital in Yingtian, because this is the place where he ruled? First of all, Zhu Yuanzhang felt that the dynasties with their capital in Yingtian were short-lived and unlucky. Secondly, some ministers believe that; Some people in the world are not all in the central plains, and they can't control rape and stubbornness; In Ming Dynasty, there was a soldier cave in Jubaomen, Nanjing, with the sky on the left side of the river, which was not ideal as the capital city. In March, Zhu Yuanzhang sent troops to capture the capital of song dynasty. Many people suggest deciding the capital of the capital. Zhu Yuanzhang attached great importance to it and went on a field trip in April. He believes that although the capital of song dynasty is in a moderate position, there is no danger to defend and the situation is not as good as the weather. In August, Zhu Yuanzhang officially issued a letter, taking Yingtian as Nanjing and the capital of song dynasty as Beijing. Since Zhu Yuanzhang was not satisfied with the capital of the Song Dynasty, why was it designated as Beijing? He originally thought that the capital of China and the conquest of the North by the Yuan Dynasty could arouse the national feelings of the people in the North, which had great appeal. At that time, the northwest was undecided, and the capital of song dynasty should be used as a base for transporting grain and grass and supplementing troops.