Grain amaranth drink and preparation method thereof

The invention belongs to the technical field of food, and particularly relates to a grain amaranth drink and a preparation method thereof. The preparation method comprises the following steps: by taking amaranth, oats, wheat, mung beans, soybeans, fructose oligosaccharide and a stabilizing agent as active ingredients, selecting the raw materials, roasting and grinding, blending and marking up to the volume, homogenizing at high pressure, performing ultrahigh-temperature instantaneous sterilization, and filling to obtain the grain amaranth drink. The grain amaranth drink has balanced nutrients, and is high in nutrition potency, can be filled with sterility, can be industrially produced, and has the advantages of being long in shelf life, easy to carry, ready to drink once opening, convenient to drink and suitable for drinking of people with affluenza, and the like.