The invention discloses a wood flour-filled modified polypropylene material with low odor and an imitation flocking effect, and a preparation method thereof. The wood flour-filled modified polypropylene material is prepared from the following components in percentage by weight: 40 to 99 parts of polypropylene resin, 0 to 40 parts of ore body powder, 0 to 20 parts of flexibilizer, 0.5 to 10 parts of wood flour, 0.1 to 1 part of antioxidant, and 0.1 to 0.5 part of light stabilizer. Compared with the prior art, the wood flour-filled modified polypropylene material provided by the invention has the following positive effects that (1) the wood flour is adopted to replace chemical staple so as to be added into the light-colored modified polypropylene material, a texture design is combined to have the imitation flocking effect, and a wood flour grid or a hollow structure can adsorb odor, so that not only is the material odor reduced, but also a light wooden fragrance can be produced. The material can replace an interior trim part product coated with textile fabrics, so that not only is the production cost of auto parts manufacturers saved, but also the high requirements of consumers on smell and vision effects of automotive interior trims are greatly met. (2) Less wood flour is added, so that the wood flour is not easy to precipitate out and has no influence on a physical performanceof the material.