Polypropylene composition and polypropylene kinking packaging film

The invention provides a polypropylene composition and a polypropylene kinking packaging film prepared from the polypropylene composition. The polypropylene composition comprises polypropylene, a nucleating agent and petroleum resin; the molecular weight distribution index of the polypropylene is 2.5-5.5, the polymer tail index PIHT of molecular weight distribution width is greater than 1.9, and the melt mass-flow rate (MFR) at the temperature of 230 DEG C under the load of 2.16kg is 5-10g / 10min. The molecular weight distribution index of polypropylene contained in the polypropylene composition is narrow, the polymer tail index is greater, and the obtained polypropylene composition can obtain high tensile modulus and tensile strength by low amount use of the petroleum resin, and has good kinking properties.