There were many famous monarchs in the ancient history of our country. During their reign, they worked hard to govern the country, know people well, get rid of disadvantages and adjust their ruling policies in time. They followed the historical trend, promoted the development of ancient economy and promoted the progress of ancient society. Liu Bang, Emperor Gaozu of Han Dynasty: Implementing the policy of recuperation and developing the economy; Pro-Huns, improve ethnic relations. Emperor Wu of the Han Dynasty: strengthening imperial power and solving kingdom problems: building water conservancy and developing agricultural production; Zhang Qian was sent to the Western Regions to develop relations with ethnic minorities in the Western Regions. Liu Xiu, Emperor Guangwu: Advocate frugality, reduce taxes, release handmaiden, and rectify official management. Emperor Taizong: learn from the lessons of the Sui Dynasty and adjust the ruling policy; Be good at teaching, know people and be good at their duties; Strengthen relations with ethnic minorities and implement the policy of opening to the outside world. Wu Zetian: attaching importance to agricultural production; Reuse talents; Promote the continued development of the economy in the Tang Dynasty; Set up the North Court to defend the government and consolidate the northwest frontier. Yuan Shizu: Realizing reunification; Adjust the ruling policy and attach importance to agricultural development; Implement the provincial system and further develop a unified multi-ethnic country; Carry out the policy of opening to the outside world. Ming Taizu: Attach importance to agricultural production and reduce the burden on farmers. Emperor Kangxi: Reward reclamation and declare that the land of the former Ming dynasty captaincy belongs to the current tiller; Safeguard national unity and put down rebellion; Safeguard national interests and resist foreign aggression. First of all, it is pointed out that the early Han Dynasty presented a dilapidated scene: population decline, economic depression and food shortage. Guide the students to draw the conclusion that the economic depression in the early Han Dynasty was not conducive to consolidating the rule, and production must be resumed and developed. Secondly, it is pointed out that the cloth general of Emperor Gaozu came from humble origins and took part in the uprising to overthrow the Qin Dynasty. Therefore, they pay attention to drawing lessons from the demise of the Qin Dynasty and studying how to avoid repeating the same mistakes. Minister Lu Jia made suggestions to Liu Bang for this purpose. Liu Bang, who is also from humble origins, can also accept Lu Jia's advice. According to Liu Bang's request, Lu Jia wrote 12 copies of the memorial in succession, and put forward the policy of lenient education. Guide the students to draw the conclusion that the heavy service and punishment of Qin led to the demise, so we should learn from the lessons of Qin's death, accept Lu Jia's suggestion and implement a frivolous and lenient policy. ② According to the contents of textbooks, the measures of Emperor Gaozu's "rest and recuperation" policy can be summarized as four points: returning farmland, persuading people to return to their hometowns, releasing slaves for the people, and paying fifteen taxes. Compared with the tyranny of the Qin Dynasty, students are guided to draw the conclusion that recuperation can make farmers live and work in peace and contentment, stabilize social order, and help to establish a new ruling order.