Li Siyuan has carried out a series of enlightened reforms. First of all, killing the villains and eunuchs in the civil strife in the late Tang Dynasty effectively won the appreciation of hundreds of officials. The tomb raider and general Duan Ning were executed. Duan Ning began to be exiled to the frontier, and Li Siyuan gave him the death penalty in exile. He told Dou Luge and Wei that such traitors were first exiled to other places, and then on their way to death, he ordered our local officials to kill all eunuchs and cancel the positions of full-time eunuchs in the army. At that time, hundreds of eunuchs fled to the mountains to hide during the mutiny, and some even became monks. This time, the eunuch was basically killed. As for the actor, he was killed because he went to the country with Li by mistake.

Secondly, from the perspective of thrift, Li Siyuan has also abolished some staff, which is contrary to the extravagant style of Zhuang Zongchao. He banned the provision of luxury goods such as eagle and dog jewelry, and the harem also laid off a large number of employees, leaving only 100 imperial secretaries, 30 eunuchs, 100 teaching workshops and 50 chefs. Others can choose their own places, so he sends the beautiful women in the palace back to their hometown, leaving only the old imperial secretary to sprinkle water to sweep the floor. Third, Li Siyuan is also trying to streamline government and yamen. The ineffective institutions in various departments have been cancelled. The army is ordered to collect materials nearby, which can save a lot of transportation costs and reduce national expenses. Punish corrupt officials severely and reward honest officials. In addition to regular taxes, some officials also collected rent taxes privately and were demoted by Li Siyuan. Ye Li, the secretariat of Bozhou, committed suicide by taking bribes. Li Siyuan is merciless in punishing corruption and pollution control. When Bianzhou warehouse officials were investigated for accepting bribes, some people pleaded for help, including the son of an old general who contributed to the hero and a relative of Li Siyuan's son-in-law Shi Jingtang. Wang Jianli, an old general in Li Siyuan, pleaded for him and reduced his punishment. In feudal society, especially in the laws of the Tang Dynasty, there are some provisions that stipulate the privileges enjoyed by officials and nobles. If they commit a crime, they can ask the emperor for a verdict first. If the emperor thinks that punishment can be mitigated or exempted, they will do whatever they want. This is sometimes called "I am the law". However, treason, violation of the emperor's dignity, disrespect for parents and other crimes that violate the three cardinal guides and the five permanent members are unforgivable. There are ten kinds of such crimes, and this idiom means "heinous". Li Siyuan was born in an ordinary family. After he succeeded to the throne, he no longer cared about these privileges. He said to Wang Jianli: "Your majesty is selfless, how can you take care of him because he is a relative!" Ordered to pull out and cut. On another occasion, Ding, a sacrificial officer, stole from the warehouse and committed the crime of corruption. However, because Zhang Congbin has always pandered to powerful people and paid bribes, when he broke the law, he pleaded with Li Siyuan, the founder of Ming Dynasty. Li Siyuan thundered: "It's a sin to eat my rich salary and steal my storage property without knowing how to do things for my country!"! Now that he is reincarnated in Su Qin, you can't convince me to reduce his sentence. It's no use talking! " And then ordered the execution, without mercy. For Li's bannerman Kong Qian, Li Siyuan also complied with public opinion and decided to kill him. In the imperial edict issued, it was written: "It makes people suffer from charcoal, and the sergeant is hungry and cold, which becomes the ruin of the world and the exhaustion of the world." But Li Siyuan wisely forgave his family, only confiscated the property, and did not kill Jiuzu. In order to warn others, Li Siyuan also bans all corrupt practices. According to the imperial edict, some officials are cronyism, interfere in state affairs, collude with the law and disturb the normal order. From then on, those who practice favoritism will be banned, demoted or exiled.

For corrupt officials, Li Siyuan is not soft on punishment. For honest officials, there are many praises. When Prime Minister Li Yu was ill, Li Siyuan sent Zhai Guangqian, a trusted minister, to visit and greet him. After Zhai Guang visited, he saw that Li Yu's house was not decorated at all, and the bed was just a broken blanket. The carved architecture, brocade, silks and satins, delicacies and delicacies that are common in Li Yu's family are simply invisible. Zhai Guangquan returned to Li Siyuan and truthfully reported what he had seen. Li Siyuan was very moved. He gave Li Yu 100 silk horses, 100,000 RMB and 13 pieces of bedding. Li Siyuan is also willing to reward loyal ministers who dare to speak out about politics. Shao Qingkangcheng of Dali Temple wrote a letter to Li Siyuan, proposing five things that the country is not afraid of and six terrible things. What they are not afraid of includes some natural phenomena that they think are the anger of the gods in the sky at that time, such as the abnormality of stars, the disaster of crops and so on. And the slanderers of the villain. What Yasunari means is that Li Siyuan should not be influenced by things beyond human influence. It is important to pay attention to the six terrible things he listed, namely, the hiding of sages, the relocation of four people, favoritism, honesty, smearing the truth and outspoken. He suggested that Li Siyuan should take cautious measures to avoid terrible things. Li Siyuan was very happy after reading it and gave him a letter. This is mainly manifested in forgiving and caring for the people and reducing the burden on the people. After Li Siyuan succeeded to the throne, he set out to eliminate some disturbing practices in the Li period from all aspects, so as to reduce the burden on the people as much as possible. He wrote a letter to abolish taxes levied in some places under various pretexts, such as "saving consumption", which refers to the loss, that is, the loss of grain and silver. Some grains may be eaten by mice and birds during storage and drying, and some silver scattered by the people will also be lost in the process of remelting and casting silver ingots. Therefore, the government will collect these losses in advance when collecting taxes, but some corrupt officials take the opportunity to increase the collection ratio and enrich themselves. Li Siyuan abolished these unreasonable taxes. In other letters, wealthy farmers are forbidden to evade corvee and land rent. At that time, as in the feudal era, big official families had a certain amount of fields, which could exempt them from all taxes and corvees. Therefore, some people signed false land sales contracts with these officials' families and wrote the land in their names to avoid taxes and corvees. This not only reduces the income of the country, but also enables local officials to pay this part of the tax evaded to ordinary people on average in order to collect enough taxes. In feudal society, the taxes and corvees of ordinary people were not too much, but they became heavier with the passage of time, which was one of the important reasons. In order to prevent local officials from profiting from it, Li Siyuan ordered the books to be sent directly to the province (equivalent to the central department), and the central department would collect taxes and corvee. If someone conceals the mu of land, reward the informer, and then double the tax by household. In addition, Li Siyuan also exempted the original road and bridge fees of five articles per mu, and reduced the money of five-article distiller's yeast (the raw material for brewing) to three articles. Interest on debts that have a great impact on people's lives is also expressly limited. If the interest earned by the creditor has reached the capital amount, it is forbidden to charge interest again, and only the capital is allowed to be recovered. If the accumulated interest amount is twice the principal, it is not allowed to collect principal and interest again, which is equivalent to debt cancellation. At that time, it was really beneficial to the people to liberate some people who were overwhelmed by debts. The most serious usury in ancient society was the "lamb interest rate". The interest rate was 100%, and the principal and interest should be added together. Ten articles were returned a year ago, 20 articles were returned by the end of the year, 40 articles were returned by the end of the next year, and 80 articles were returned the year after. Li Siyuan's measures to love the people are fully reflected in the prohibition of high interest rates.