The invention relates to an easily-sprayed polypropylene composite material which can be used for automobile parts and a preparation method and application thereof. The easily-sprayed polypropylene composite material is mainly prepared by mixing the following ingredients (by weight): 40-65 parts of polypropylene, 10-18 parts of a thermoplastic elastomer, 0-3 parts of polyethylene, 0-3 parts of a polar copolymer, 20-30 parts of a mineral filler and a few amount of an anti-oxidant, a light stabilizer and other functional aids. The preparation method comprises the following steps: successively adding polypropylene, the thermoplastic elastomer, polyethylene, the polar copolymer, the mineral filler, the anti-oxidant, the light stabilizer and other functional aids into a low speed mixer and mixing for at least 2 min; adding the mixture into a twin-screw extruder and mixing, setting the extrusion temperature to be 170-240 DEG C, extruding and granulating, and uniformly mixing to obtain the product. The easily-sprayed polypropylene composite material can be used for preparation of automobile bumper products and has comprehensive properties such as excellent impact resistance, fluidity, rigidity, heat stability, dimensional stability, sprayability, etc.