Jiajiang County, affiliated to Leshan City, Sichuan Province, is located in the northwest of Leshan City, between 103°17 'to 103°44' east longitude, 29°38 'to 29°55' north latitude, belonging to the subtropical monsoon climate. As of 2019, Jiajiang County covers an area of 749 square kilometers and has jurisdiction over 7 towns and 2 subdistricts. According to the seventh census data, as of midnight on November 1, 2020, Jiajiang County has a permanent population of 305,441.

Jiajiang County because Qingyi River formed in this "green mountains on both sides of the river relative, a river from the middle of the flow of the wonderful landscape named. Xia Liangzhou domain, Han Bashu land, Sui Kai Emperor 13 years set county. June 1985, belongs to Leshan City. Jiajiang County is the "porcelain capital of western China", "Hometown of bamboo paper for thousands of years", "national key tea producing county", "China's nuclear power base". March 19, 2020, Jiajiang County was selected into the first batch of national crop diseases and pests "green prevention and control demonstration county" to create a list of promotion and evaluation. March 31, 2020, Jiajiang County was selected into the 2019 Sichuan Province rural reform work advanced counties (cities, districts) list. The added value of industrial enterprises above designated size is expected to grow by 6% year-on-year. China's investment in fixed assets is expected to reach 15.42 billion yuan, up 10% year on year. The total retail sales of consumer goods are expected to reach 7.16 billion yuan, a year-on-year growth of -5%.