The invention discloses a kind of high-nutrient healthcare rice, which is characterized in that the high-nutrient healthcare rice is composed of following materials in percentages by dry weight: 0.5-2% of millet, 3-7% of purple wheat, 3-6% of hulless oat, 0.3-1% of coix seed, 1-2% of lentinus edodes, 0.6-1.5% of hericium erinaceus, 1.5-5% of radix puerariae, 2-4% of Chinese yam, 0.3-1% of red ginseng, 0.3-1% of sealwort, 1-3% of corn, 1-4% of soybean, 1.5-5% of black soybean and the balance being brown rice. The preparation method comprises the steps of: A, respectively superfine-grinding the millet, the purple wheat, the hulless oat, the coix seed, the lentinus edodes, the hericium erinaceus, the radix puerariae, the Chinese yam, the red ginseng, the sealwort, the corn, the soybean and the black soybean into superfine crushed materials with a grain size less than 800 meshes; B, crushing the brown rice into a crushed material with a grain size less than 80 meshes; C, weighing the superfine crushed material and the brown rice crushed material according to proportion, and uniformly mixing the superfine crushed material and the crushed material to be a mixture; D, adding water into the mixture to stir into a paste; E, shaping the paste into rice grains by extrusion; and F, drying the rice grains by microwave, thus obtaining finished goods of the high-nutrient healthcare rice.