The invention discloses black coarse cereal powder with functions of kidney tonifying and hair blackening, wherein the raw materials comprise, by weight, 1-5 parts of black Chinese wolfberry, 1-10 parts of Polygonatum sibiricum, 10-25 parts of black sesame, 10-15 parts of black rice, 1-30 parts ofblack bean, 1-10 parts of Chia seed, 1-10 parts of black fungus, and 1-10 parts of black mulberry. According to the present invention, the black coarse cereal powder is prepared by selecting the eight black food materials through scientific compatibility, wherein the formula is novel, the functions are significant, and various raw materials can provide the effects; and the black coarse cereal powder has effects of kidney tonifying, hair blackening, qi enriching, blood enriching, blood circulationimproving, immunity enhancing, swelling subsiding, qi descending, lung moistening, stomach benefiting, spleen strengthening, sleep improving, beautifying, face nourishing and the like, further has characteristics of convenient eating, good taste, excellent taste and low cost, is suitable for ordinary consumers, and has good application prospects.