Chengyu is the area between Chengdu and Chongqing in Sichuan.

Chengyu is the abbreviation of Chengdu-Chongqing region, Chengdu-Chongqing urban agglomeration or Chengdu-Chongqing economic zone, which refers to the area surrounding and between the two cities of Chengdu and Chongqing. The Chengdu-Chongqing region is a relatively economically developed region in western China and one of the important urban belts in China.

Cheng is the abbreviation of Chengdu City, Sichuan Province, and Chongqing is the abbreviation of Chongqing City. These two cities used to be key cities in Sichuan Province. After Chongqing was directly under the direct jurisdiction of the central government, these two cities The exchanges and cooperation between cities have never ceased, and now they are joining hands to become the leader of the development of the western region. The food in both places is mainly spicy.

The Chengdu-Chongqing region is connected by blood and has deep roots, and plays a decisive role in China's regional development sector. Currently, the domestic and international environment is undergoing profound and complex changes. Promoting deeper development in the Chengdu-Chongqing region is not only conducive to high-quality regional development, but also an inevitable choice for the country to build a new development pattern.

The establishment of the Chengdu-Chongqing Shuangcheng Economic Circle Collaborative Development Center gives full play to the advantages of disciplines and majors, strives to contribute the wisdom and strength of the school, and integrates and optimizes the school's human resources, intellectual resources, and academic resources. It has positive significance. It also provides a favorable starting point and an important platform for the school to better integrate into the construction of the twin-city economic circle.

Chengyu usually refers to most of the Sichuan Basin, covering the cities of Chengdu, Mianyang, Nanchong, Suining, Neijiang and Zigong in Sichuan Province and the original local-level Chongqing City, Wanxian City, Fuling City and Qianjiang area and other jurisdictions. Chengdu-Chongqing is the most economically and culturally developed region in central and western China, and is also one of China's important urban agglomerations and economic zones.