The invention relates to the technical field of drinks, and particularly discloses an appetizing solid drink with an effect of reducing the food glycemic index and a preparation method thereof. The solid drink is prepared from the following raw materials in percentage by weight: 28.5 percent of white kidney bean extract, 22.8 percent of konjac powder, 14.2 percent of stachyose, 14.3 percent of inulin, 1.4 percent of oat beta glucan, 7.9 percent of kudzu vine root powder, 4.1 percent of resistant dextrin, 3.5 percent of yam powder, 2.6 percent, 0.4 percent of edible salt, 0.1 percent of edibleessence and 0.2 percent of sucralose. According to the key point of the technical scheme, the appetizing solid drink can be used for reducing the glycemic index of foods, has the effects of retardingblood glucose rise, relieving the sense of hunger, reducing the index of glycosylated hemoglobin and regulating gastrointestinal balance, so that a diabetic patient can reduce and relieve intake of sugar while enjoying conventional food nutrition, and the solid drink has a good effect of regulating gastrointestinal balance of the diabetic patient, has a comprehensive regulating effect and benefitto diabetes mellitus, so that relieving and reverse of the dibetic disease situation can be favored.