The invention provides mango, banana and purple sweet potato crispy-coating moon cakes and a making method thereof, and belongs to the technical field of food processing. The mango, banana and purplesweet potato crispy-coating moon cakes comprise cake coatings and fillings, wherein the cake coatings comprise water-oiled coatings and oil coatings, the water- oiled coatings consist of 40-50 parts of low-gluten flour, 20-30 parts of strong flour, 20-25 parts of peanut oil, and 15-20 parts of water; the oil coatings consist of 30-40 parts of low-gluten flour, 30-40 parts of strong flour, and 30-40 parts of peanut oil; and the filling consists of 20-30 parts of mango flesh, 30-40 parts of bananas and 45-55 parts of purple sweet potatoes. The making method comprises four steps of preparing thefillings, preparing the cake coatings, stuffing the filling for shaping and performing baking. The made mango, banana and purple sweet potato crispy-coating moon cakes are fragrant and mellow in mouthfeel, little in sugar, little in oil, and rich in nutrition, have the health-care functions of reducing cholesterol, preventing cardiovascular diseases, high blood pressures and atherosclerosis, andare health-preserving moon cakes.