Deyang is a few cities, and Deyang belongs to several cities.

Most of the fourth-tier cities are medium-sized cities with relatively ordinary city scale, economic and social development level and traffic construction. Most of the fourth-tier cities are mainly prefecture-level cities, including provincial capitals, capitals and autonomous prefectures of individual provinces and autonomous regions.

Deyang, also called "Jingcheng", is a prefecture-level city under the jurisdiction of Sichuan Province, located in the northeast of Chengdu Plain, and in the transition zone from Longmen Mountains to Sichuan Basin. The northwest has a vertical climate in the mountains, and the southeast has a humid monsoon climate in the middle subtropical zone. The total area of the city is 5911 square kilometers.