The invention discloses a coating-free polypropylene composition with paint brightness and metal texture, which is prepared from the following components in percentage by mass: 50-99.8% of polypropylene, 0-20% of elastomer, 0-30% of talc powder, 0.1-2% of sheet-shaped aluminum powder and 0.1-2% of color brighter, wherein the mass ratio of the sheet-shaped aluminum powder to the color brighter is 1:(2-5). The coating-free polypropylene composition with paint brightness and metal texture can be directly made into a component through injection molding, wherein the component has excellent paint brightness and metal texture, and the appearance effect of the component is close to a paint coating effect. The preparation method of the coating-free polypropylene composition with paint brightness and metal texture has the advantages of avoiding complex operation of the traditional paint coating technique, greatly simplifying operation steps, being simple in preparation process, having low device requirement and high product yield, saving energy, protecting environment and reducing cost.