The invention discloses anti-pollution high-contact area double layer composite fuel oil filtration paper and a preparation method thereof, wherein the anti-pollution high-contact area double layer composite fuel oil filtration paper is characterized in that the anti-pollution high-contact area double layer composite fuel oil filtration paper is prepared from the following raw materials by weight: 1-3 parts of cyclodextrin, 10-20 parts of broad leaf wood pulp fiber, 1-2 parts of, plant ash 10-20 parts of needle pine wood fiber, 10-20 parts of polyester fiber, 10-20 parts of sepiolite nanometer fiber, 1-2 parts of peanut shell, 3-5 parts of Fe2O3, 5-10 parts of TiO2, 4-8 parts of MgO, 25-35 parts of a silane coupling agent KH560, 15-20 parts of a polyoxyethylene aqueous solution, 2-4 parts of a titanate coupling agent DNZ201, 50-60 parts of isopropanol, 5-10 parts of a styrene-acrylic emulsion, and a proper amount of a polyacrylate emulsion. According to the present invention, the filtration paper is subjected to the crumpling treatment, such that the contact area of the fuel oil and the filtration paper is increased so as to further improve the filtration efficiency; and the cyclodextrin is matched, such that the stable inclusion can be formed with the pollutant so as to reduce the environmental pollution.