In A.D. 168 1 year, Emperor Kangxi of the Qing Dynasty opened more than 10,000 square kilometers of hunting grounds here to exercise the army.

Mulan paddock, a royal hunting garden in Qing Dynasty, is located in the northeast of Hebei Province (Weichang Manchu and Mongolian Autonomous County of Chengde City), bordering the grassland in Inner Mongolia, and is rich in aquatic plants and animals. "Li Qian Pine Forest" was once the hunting place of Liao emperors, and "Mulan paddock" was also the place where Qing emperors held "Mulan Begging for Immortals".