The invention relates to a Maca candy tablet and a preparation method thereof, wherein the Maca candy tablet comprises, by weight, 15-30% of Maca powder, 2-5% of a polygonatum sibiricum extract, 15-35% of xylitol, 21-30% of maltodextrin, 12-27% of corn starch, 0.3-0.7% of magnesium stearate, and 0.01-0.05% of microcrystalline cellulose. According to the present invention, the Maca candy tablet produced under the low temperature condition has characteristics of complete nutrition component and easy digestion and absorption, and provides significant promotion effects for reproductive system function enhancing, chronic muscle fatigue relieving, mental fatigue relieving, stress relieving and memory loss delaying; the polygonatum sibiricum extract has effects of aging resistance, blood glucose lowering, blood fat lowering, memory improving, antitumor, immune regulation and anti-virus effect, and can synergistically improve the treatment effect and eliminate the adverse reaction after being matched with the Maca, such that the product is suitable for diabetes patients with intestinal tract problems, especially for obese people, people having high blood glucose, high blood fat and high pressure, and the elderly; and the maltodextrin can prevent the product from deformation, can improve the appearance, cannot cause dental caries, and further has characteristics of easy carrying, easy taking, and further taste enhancing.