The invention discloses a glutinous-rice-fermented beverage which is prepared through the following steps: cleaning glutinous rice, soaking the cleaned glutinous rice with water, steaming the soaked glutinous rice until the soaked glutinous rice is ripe, cooling the ripe glutinous rice, adding distillery yeast, uniformly mixing, putting the mixture into a tank, placing in an omniseal environment, fermenting at 25-30 DEG C for 30-36 hours, flipping the glutinous rice in the tank, and continuing to ferment for 30-40 hours, thus forming vinasse; jordaning the vinasse, and adding a prepared liquid (A), wherein the liquid (A) comprises white granulated sugar, nutrient agar and purified water; uniformly mixing the liquid (A) with the jordaned vinasse, simultaneously heating and stirring until the mixed solution of the liquid (A) and the jordaned vinasse is fully dissolved to form a solid-free emulsion, regulating the pH value and sugar degree of the emulsion, and homogenizing; and encapsulating the homogenized emulsion, sterilizing at normal pressure and high temperature, and carrying out aseptic package, thus obtaining finished products. The beverage provided by the invention has the beneficial effects that the fermentation time is long, the content of nutrient components is high, and the beverage can be absorbed by a human body easily, thereby being an environmentally-friendly beverage.