The invention relates to a novel compound paper material and a preparation method thereof. The preparation method includes: compounding an adhesive and reinforcing fibers to obtain a compound, placing the compound on an unwinding device, placing paper on another unwinding device, using one hot roller to perform hot rolling on the paper and the compound at the same time, and using a winding device to wind the compound paper after the hot compression molding. The prepared novel compound paper material is high in tensile strength and tear strength and extremely good in economic value and popularization value. The preparation method has the advantages that the reinforcing fibers are compounded with the surface of the paper, low material consumption, low cost and low requirements on the paper material before the compounding are achieved, the adhering effect of the adhesive can be brought into play after the hot compression, and the problems that a traditional adhesive is inconvenient to use and high in cost and easily generates toxic and harmful substances are solved.