The invention relates to the field of glass products, in particular to glass mounted on automobiles, and in particular provides heat-insulation laminated glass for the automobiles and a preparation method of the glass. The heat-insulation laminated glass for the automobiles includes an outer glass plate, a heat-insulation middle layer and an inner glass plate; and the heat-insulation middle layerincludes a first thermoplastic resin film, an infrared reflective film and a second thermoplastic resin film which are sequentially stacked, the infrared reflective film includes at least two resin films stacked together, the difference in refractive indexes between two adjacent resin films is greater than or equal to 0.05, and the softening point temperature of the infrared reflective film is greater than the softening point temperature of the first thermoplastic resin film and the second thermoplastic resin film by at least three times. According to the glass, the heat-insulation middle layer is prevented from being softened simultaneously to be squeezed each other, appearance defects such as waviness and pits are eliminated, the appearance quality of the laminated glass is guaranteed, electromagnetic wave signals are not inhibited from passing through the glass, and communication in the automobiles and other additional features can be guaranteed.