Garlic functional drink and preparation method thereof

The invention relates to functional drink which adopts garlic as the main material, and a preparation method of the functional drink, and in particular relates to garlic functional drink and a preparation method of the garlic functional drink, belonging to the biotechnological field. The garlic drink with a special healthcare function is prepared from deeply processing the garlic by adopting a biotechnology; and the garlic drink prepared by the preparation method has good mouthfeel and is well reserved with functional ingredients of the garlic. The garlic functional drink is prepared by mixing and sterilizing the following materials in percentage by weight: 50%-90% of garlic clear juice, 10%-50% of water, 0-3% of xylitol, 0.1%-0.5% of citric acid, 0.1%-0.4% of malic acid, 0-6% of honey, 0-1% of vitamin B12 and 0.01%-0.1% of vitamin C. The materials are prepared and sterilized to prepare the garlic functional drink. And the content of fructo-oligose in the prepared drink is 1-5g/100mL, and the content of alliin in the prepared drink is 1-20mg/100mL.