The plateau rich in selenium miscellaneous grains is selected from the plateau high-quality selenium-rich black barley, black wheat, purple barley, black beans, lentils, and another plateau black selenium-rich agricultural products. Through the simple traditional stone grinding process, the black Mairen, black wheat kernel, black barley grits, purple barley grits, etc., have met the needs of consumers and adapted to the trend of the times of coarse grains and healthy health. At the same time, a variety of trace elements needed by the body have been added. The high plateau is rich in selenium miscellaneous grains for people's future three meals a day to "eat black and black, health and longevity" added new hope, injected more vitality. Each box 3000 grams, there are 6 small bags, each bag 500 grams.