The invention provides a fig/yam natural fruit for improving sleep and a preparation method thereof, relating to a fruit improving sleep quality and a preparation method thereof. The fig/yam natural fruit is prepared by raw materials such as fig, millet, lotus root, lotus seed, sunflower seed, Chinese date, longan, mulberry, light wheat powder, oat, spina date seed, yam, indian bread with hostwood, cortex albiziae, lily, tuber fleeceflower stem, cornaceae, schisandra chinensis, acanthopanax root, fcus taua powder, potato powder, granulated sugar, whole milk powder and natural essence. The fig/yam natural fruit has the effects of tranquilizing the nerves, mediating qi and blood, nourishing the five internal organs and promoting the secretion of saliva, can be used for improving the sleep quality and curing sleep disorder, and is free of side effects.