The invention relates to the technical field of construction building templates, and discloses a self-repairing polypropylene skin material for the surface of a building template and preparation and use methods thereof. The skin material is in contact with the surface of the building template and comprises the following components in parts by weight: 100 parts of polypropylene, 5-20 parts of polypropylene elastomer, 5-20 parts of ethylene propylene diene monomer, 1-10 parts of repairing agent, 5-20 parts of filler, 5-20 parts of flame retardant, 0.1-3 parts of antioxidant, 0.1-3 parts of ultraviolet light absorber and 0.1-3 parts of a dispersing agent. The material is attached to the surface of the existing building template for use, has good demoulding property, is tough and scratch-resistant, and can be repeatedly used.