According to Baidu Encyclopedia, Gong Yuan Street in Chengdu forms a crossroads with Sanqiao North Street, Dongyu Street and Xiyu Street. Its south entrance is connected with Sanqiao North Street, and its north entrance is only about 40 meters away from the all-stone archway of "seeking tribute for the country" outside Huangchengmen. Before 1950s, it was the center of Hui food stores. Because people living near the old imperial city used to call Gong Yuan Street the "Imperial City Dam", its proper name was forgotten.

Hui nationality is a minority with a large population in China, which is distributed in 3/kloc-0 provinces, autonomous regions and municipalities directly under the central government. Ningxia Hui Autonomous Region is the main inhabited area, with the Hui population of1862,500, accounting for 18.9% of the total Hui population in China. In addition, areas with a Hui population of over 200,000 include Beijing, Hebei, Inner Mongolia, Liaoning, Anhui, Shandong, Henan, Yunnan, Gansu, Xinjiang and Qinghai.

The ethnic origin of the Hui nationality can be traced back to the Tang Dynasty. It is generally believed that the Hui nationality was formed in the Ming Dynasty, the Yuan Dynasty was the preparatory period for the formation of the Hui nationality, and the Ming Dynasty was the last period for the formation of the Hui nationality. Hui people all over the country also participated in the struggle against imperialist aggression in different forms. The May 4th Movement and the establishment of the China Producers' Party pointed out the direction for the complete liberation of the Hui people. No matter in politics, economy and culture, many outstanding figures emerged in the history of the Hui nationality, which made positive contributions to the people's life and production and construction at that time. According to the statistical yearbook of China -202 1, the population of Hui nationality in China (excluding Taiwan Province province) is 1 13779 14.