The unification war in the Ming Dynasty was from 1368 to 1389. Zhu Yuanzhang, the founder of the Ming Dynasty, fought a series of wars to unify the whole country. The unification war of the Ming Dynasty was mainly divided into three parts: first, sending troops to overthrow the rule of the Yuan Dynasty, then destroying the separatist regimes in various places, and finally attacking the remnants of the Yuan Dynasty to safeguard the unity of the Ming Dynasty.

At the end of Yuan Dynasty, there were frequent peasant uprisings all over the country, among which the most famous peasant uprising team was the Red Scarf Army. Zhu Yuanzhang is one of the leaders of the Red Scarf Army. From the outbreak of the uprising to 1367, the rebels led by Zhu Yuanzhang defeated Chen Youliang, the Han emperor in the south of the Yangtze River, and Zhang Shicheng, the king of Wu, and unified the south of the Yangtze River. After that, Zhu Yuanzhang sized up the situation and prepared to set the Central Plains in the north and the coast in the south to seize national sovereignty.

Zhu Yuanzhang asked Xu Da and Chang Yuchun to lead the army north to take the Central Plains and enter the capital, which is now Beijing. Among them, Xu Da was the general of the Northern Expedition and Chang Yuchun was the deputy general. In order to reduce the resistance of the Northern Expedition, Zhu Yuanzhang asked the two of them to play the slogan of "expelling Land Rover and restoring China", which won the support of many Han people, so the Northern Expedition went smoothly.

To the south are Tanghe and Hu Tingrui, both of whom were named General Nan by Zhu Yuanzhang. Tanghe is responsible for eliminating the separatist forces in eastern Zhejiang, and Hu Tingrui is responsible for capturing Fujian. In addition, Guangxi was handed over to Yang Jing and others in Huguang Province.

By AD 1368, the troops sent by Zhu Yuanzhang had won one victory after another, and good news spread frequently. So Zhu Yuanzhang acceded to the throne in Yingtian for Ming Taizu and Jianyuan Hongwu. However, the unification war of the Ming dynasty did not end, but it was more extensive. After that, there were a series of operations such as capturing Sichuan, unifying Yunnan, unifying Northeast China, and managing the frontier.