Grain color sorter manufacturers use high-precision CCD digital cameras, LED product lighting systems, and professional image acquisition and processing systems. By comparing with the stored sample color data, they can detect very small color differences and effectively remove foreign matters with colors very close to the product. In addition, the machine adopts a special slide, which is suitable for the selection of corn, buckwheat, oats, black sesame, white sesame, red kidney beans, white kidney beans, soybeans, mung beans, red beans, black beans, peas and other miscellaneous grains, effectively improving the quality of miscellaneous grains. In the future, the color sorter for cereals will have a large market development space, especially for the color sorter for cereals represented by wheat, soybeans, peanuts, etc. as food or edible oil raw materials, which will have a large market development potential.