The invention relates to oil absorption materials and preparation methods thereof, in particular to a polyphenylene sulfide melt-blown composite fiber oil absorption non-woven fabric and a preparation method thereof. Polyphenylene sulfide and polypropylene resin are mixed, melt blowing is carried out to obtain composite fibers, the oil absorption non-woven fabric is obtained through thermal treatment and thermal rolling, and the preparation method is simple, convenient to use and environmentally friendly. The fibers in the polyphenylene sulfide melt-blown composite fiber oil absorption non-woven fabric are of three-dimensional irregular curved structures, the oil absorption non-woven fabric is excellent in mechanical property, the oil absorption and oil holding rate of the oil absorption non-woven fabric are obviously increased, and durability to acid, alkali and salt is remarkably improved. The preparation method is simple and convenient to use, energy is saved, and the oil absorption non-woven fabric is long in service life, and can be repeatedly used and widely applied to emergency treatment of ocean oil overflow accidents.