The invention discloses a high-polarity polypropylene material and the application thereof as inner and outer decorative parts of an automobile. The material is prepared from the following components in percentage by weight: 50-89 polypropylene, 5-25 flexibilizer, 0-30 mineral filler, 5-15 polar additives, 0.2-3 age resister and 0-0.5 colorant, and the components are premixed and then are extruded out by a double-screw extruder to prepare particles, thereby preparing the high-polarity modified polypropylene material. The surface tension of the material is as high as 37 dyne/cm<2>, dope-binding strength is high, an automobile bumper formed by the material can be coated without being pretreated, and when being used for preparing the inner decorative part for the automobile, the material has good property of binding other materials.