The invention discloses a polypropylene resin composite, containing polypropylene resin 30-90 wt%, microball 5-70wt%, inorganic micron or nano particles 0-50 wt% and microfiber 0-50 wt%. The composite not only maintains original excellent properties of polypropylene but also has good molding property, balanced rigidity / flexibility, excellent surface quality of components made by injection molding, high surface hardness, property of uneasily scratching, and excellent molding processing property and lower molding shrinkage, able to make direct injection molding in original HIPS and ABS modules, thus replacing HIPS and ABS. It can be used in preparing the outer casing of home appliances and the cases office appliances, especially the front / back cases of TV sets, the outer casing of the remote controllers, etc as well as the cases of duplicating maclines, monitors, etc.