The invention provides a potato mooncake. A cake crust comprises the following components in parts by weight: 50-75 parts of flour, 25-50 parts of potato granules, 50-80 parts of high fructose corn syrup, 10-40 parts of plant oil, 0.1-1 parts of monoglyceride, 0.1-0.3 part of sodium carbonate, and 5-8 parts of water; a stuffing comprises the following components in parts by weight: 100 parts of potato granules, white granulated sugar, melon seed kernels, peanut kernels, sesame, walnut kernels, pinenut kernels, plant oil, rose wine, water and the like. The potato mooncake has the advantages that the stuffing and the cake crust use the potato granules as the main raw materials, so the fatty content of the potato mooncake is reduced, the difficulty in industrial processing is decreased, and the industrial processing efficiency is improved; the mechanical operation is convenient, the qualitative and quantitative standard processing is realized, and the potato mooncake is suitable for industrial production of large, medium and small cake processing enterprises.