The invention discloses fruity white spirit and a preparation method thereof. The fruity white spirit is prepared from the following raw materials in parts by weight: 400-450 parts of waste distiller's grains, 100-110 parts of rice, 100-110 parts of rice husk, 10-11 parts of blueberries, 20-22 parts of snow pear, 3-4 parts of mint leaves, 4-5 parts of rhizoma alpiniae officinarum, 2-3 parts of arabian jasmine flowers, 2-3 parts of ginseng leaves, 25-30 parts of yeast for making hard liquor, 0.5-1 part of tea polyphenol, and 0.5-0.7 part of xylo-oligosaccharide. According to the fruity white spirit and the preparation method thereof, the waste distiller's grains are adopted as the raw material for producing the white spirit, so that a production chain of a yellow rice plant is extended, and the prepared white spirit is mellow and plump, and long in aftertaste; the rice husk is subjected to puffing treatment, so that the raw material is loose; the tea polyphenol with selective bacteriostatic action is added, so that bacteria, such as lactic acid bacteria, capable of generating acid is inhabited, while bacterial colony balance of fungi, such as mould, is maintained, and therefore, the problem that the acid content of the fermented materials increases rapidly is solved; the added xylo-oligosaccharide can protect the liver, and in addition, the fruity white spirit also can refresh the mind.