Sanxi Township is located in the southeast of Dianjiang County, the end of Longevity Lake - Longxi River, covers an area of 72 square kilometers, an average elevation of 453 meters, the region in latitude 30 degrees north and longitude 107 degrees 20 minutes, is the Yudong basin parallel ridge valley cell shallow hill landscape, the average annual temperature of 17 ℃, annual rainfall of 1260mm, the average frost-free period of 315 Days, belongs to the middle subtropical temperate monsoon climate. In 2006, the total population of the township is 18006 people, including 729 non-agricultural population and 17277 agricultural population; the birth rate is within 5.1 per thousand, and the natural population growth rate is 2.9 per thousand; there are 2 primary schools in the township and 1 middle school in the township, with 142 staff members and 2520 students, and the enrollment rate of school-age children is 100%; there are 12480 mu of arable land in the township, among which there is a field of 12,480 mu, of which there is a field of 12,480 mu, of which there is a field of 12,480 mu. The township has 12,480 acres of arable land, including 7,200 acres of fields and 5,280 acres of soil, with a per capita arable land of 0.72 acres, purple soil, sufficient light, abundant precipitation, and suitable for planting a variety of crops.