According to the data of the seventh population census in Chongqing, the permanent population of Dianjiang County is 650,694. Among them, 50.57% are men and 49.43% are women. In the age structure, 0- 14 years old accounts for 18.08%, 15-59 years old accounts for 57.42%, over 60 years old accounts for 24.5%, and over 65 years old accounts for 20.29%. Dianjiang County is a county under the jurisdiction of Chongqing, located in the northeast of Chongqing and the upper reaches of the Yangtze River. Dianjiang County, known as "the granary of Pakistan", "the hometown of silk" and "the hometown of peony", is a national modern agriculture demonstration base county, a national commodity grain base county, a demonstration county of overall urban and rural comprehensive reform in Chongqing, and a landscape garden city in Chongqing.