Vanadium dioxide coated glass (VO2 glass) is a promising thermochromic energy-saving glass. Its film can change phase at a certain temperature from the semiconductor into a metallic state, accompanied by changes in optical properties. The VO2 glass can intelligently adjust the solar radiation from the sunlight for the room, to achieve energy efficiency of the building. Use the national standards of architectural glass measuring, measure the visible transmittance, solar direct transmittance rate, the phase transition temperature, the thermal parameters of the emission rate, the visible reflectivity of VO2 glass. Collect the current parameters of VO2 glass and compare and analysis them with common energy-saving glass. Conclusions are that the VO2 glass is superior to some common energy-saving glass, but slightly weaker than Low-E glass. The advantages of VO2 glass are its phase transition function, a very weak reflection, the weak points are its lighting performance, insulation performance, the transmittance change range before and after the phase transition is a narrow which is the direction of development and improvement in the future.