The invention provides a method for preparing coconut oil. The method comprises the following steps: S1, primarily drying fresh coconut milk at a drying temperature of 50 to 60 DEG C, wherein the mass content of moisture is 30 to 35% after drying; S2, secondarily drying the coconut milk obtained by drying in step S1 at a drying temperature of 50 to 60 DEG C, wherein the mass content of moisture is 3 to 5% after drying; S3, pressing oil from the coconut milk obtained by drying in step S2 at an oil pressing temperature of 40 to 80 DEG C for 1 to 4 h; S4, drying coconut oil obtained in step S3 in vacuo to obtain a finished coconut oil product. The method provided by the invention has the advantages of physical method in the production process, no pollution, no additives, health and environmental protection, energy saving, consumption reduction, low cost and high quality.