Polypropylene material for hard-plastic instrument board of automobile and preparation method thereof

The invention discloses a polypropylene material for a hard-plastic instrument board of an automobile and a preparation method thereof. The polypropylene material for the hard-plastic instrument board of the automobile comprises, by weight, 100 parts of polypropylene resin, 10 to 20 parts of glass fiber, 4 to 10 parts of a compatilizer and 0.1 to 0.5 part of a scratch resisting agent. The polypropylene material has high tensile strength, bending strength, flexural modulus and notch impact strength.