Guanghan City, a county - level city in Sichuan Province, is administered by Deyang City. Ancient Han Zhou, alias Luo Cheng, is the first batch of Sichuan expansion county pilot county (city); It is 19 kilometers away from Deyang City in the north and 20 kilometers away from Chengdu City in the south. It is located at the west foot of Longquan Mountains in the northeast of Chengdu Plain. Guanghan is a subtropical humid climate area in Sichuan Basin. Jurisdiction over 9 towns, 3 streets, a total area of 548.69 square kilometers. According to the seventh census, the permanent population of Guanghan was 626,132 as of midnight on November 1, 2020.

Guanghan City is located in the core area of the "Land of abundance". Since ancient times, it has been said that "the gateway of Yizhou, the main thoroughfare of Shu Province, and the Confucius Road to Beijing". It is the north gate of Chengdu. The Sanxingdui Site of Guanghan Dynasty is a site of ancient Shu culture dating from 5000 to 3000 years ago. It is known as one of the greatest archaeological discoveries of the 20th century. It shows that the Yangtze River Basin and the Yellow River Basin belong to the mother of Chinese civilization, and is known as "the source of Yangtze River civilization".

Within Guanghan City, there are key national cultural relics protection units Luocheng and Ming Dynasty temple Longju Temple, as well as Golden Yan Lake, Fang Lake Park, Guanghan Temple, Guanghan Dongzen Temple, Han Dynasty ancient tombs, as well as the traditional folk customs of more than 300 years "Baobao Festival". The top 100 counties and cities in Western China. September 22, 2020, won the 2019 Sichuan Province grain production "Harvest Cup".

In 2021, the GDP of Guanghan was 48.02 billion yuan, an increase of 8.4%. The value added of the primary industry was 4.11 billion yuan, up by 7.3%; The added value of the secondary industry was 24.74 billion yuan, up by 7.9%; The value added of the tertiary industry was 19.17 billion yuan, up by 9.2%. The tertiary industrial structure was adjusted from 9.0:50.8:40.2 to 8.6:51.5:39.9. Per capita GDP reached 76,709 yuan, an increase of 8,075 yuan or 8.2 percent over the previous year.