The invention relates to the technical field of aluminum-coating films and discloses an aluminum-coated film based on environment-friendly packaging and a preparation method of the aluminum-coated film. The aluminum-coated film comprises a thin film, wherein an aluminum-coated film is fixedly connected to the outer wall of the thin film through reinforcing glue, the outer wall of the aluminum-coated film is coated with an antioxidant protection layer, the outer wall of the antioxidant protection layer is coated with a waterproof coating layer, and a thin paperboard is fixedly connected to theother side of the outer wall of the thin film. By arranging the reinforcing glue, the adhesiveness between the thin film and the aluminum-coated film is enhanced, so that the problem that the aluminum-coated film easily falls is solved; by arranging the thin paperboard, a wave paper layer and buffer particles, the steadiness of the tenacity of the aluminum-coated film is improved, so that the aluminum-coated film is suitable for packaging different articles, can be conveniently recycled and is high in environment-friendly property, the damage of the packaged articles is prevented, the servicelife of the aluminum-coated film is prolonged, and the aluminum-coated film is convenient to recycle; and by utilizing the antioxidant protection layer and the waterproof coating layer, the water tolerance and the wear resistance of the aluminum-coated film are improved, and the service life of the aluminum-coated film is prolonged.