The southern part of Ding'an is an ideal place for selenium-enriched rice. Because the local rice is planted in selenium-enriched soil, extracting the essence of the earth, selenium is involved in the whole process of rice starch and protein synthesis and operation. Compared with the selenium content of the external selenium fertilizer, the Dingan rice has natural selenium. The traits are much more efficient and safe to be absorbed by the body. Long-term use of selenium-enriched rice can resist oxidation, anti-aging, protect and repair nutrient cells, improve oxygen carrying capacity of red blood cells, protect cell membrane integrity, detoxification, detoxification, anti-pollution, prevent cancer, and improve human immune function.