Su is one of the few palaces in northwest China. After the establishment of the Ming Dynasty, Zhu Yuanzhang reorganized the central organs of the country, and at the same time made the philosophers king, allowing them to "control the key points and separate internal and external affairs" and achieve the role of "sheltering the royal family". In the 11th year of Hongwu in Ming Dynasty (1378), Zhu Yuanzhang named fourteen sons Zhu Bi Hanwang. Zhu Ming is good at riding and shooting, good at poetry and writing, and resourceful. Zhu Yuanzhang once called him a scholar. Twenty-five years (1392), renamed Su Wang, in Pingliang. In the 28th year (1395), Ganzhou (now Zhangye city) was established, and in the first year of Wen Jian, Ming Huidi (1399), because of the "infrequent mutinies between Gansu and Soviet Union", the situation in Zhuzhan, Wang Su was complicated and difficult to control. The cold wind in Ganzhou made the officers and men in the south of the Yangtze River acclimatized, and they asked to move in, which was approved by Wen Jian (that is, Ming Huidi). After approving the request, he sent Tsao Gong Li Jinglong to Lanzhou to choose his residence, and built the Su Palace according to the specifications of "second only to the emperor". Wang Fu is located in the north-central part of Lanxian County, which is mainly located in the former Lanzhou government office in Yuan Dynasty and Lanxian government office in the early Ming Dynasty, and has been expanded. Specifically, it starts from Guan Hui Lane in the east, reaches Chenghuang Temple in the west, reaches Zhangye Road in the south and reaches Binhe Road in the north. After the site selection of Wang Fu, large-scale construction began, and luxury palaces were built on a large scale. Like other kings, Zhu Ming, the king of Su, "the crown, the flag and the palace are not as good as the emperor." The ministers bowed down and did not dare to salute. ""Lao Lu Wandan ". In order to show dignity, the county department moved to the southwest, and the seat of the old county government was changed to a vassal government.
After the completion of Wang Mi, Wang Su led officials from Wang Fu, guards and soldiers from Ganzhou, followers of Wang Su from the south of the Yangtze River and others to move to Lanzhou.