The paper presents that the plasma frequency ωp of semiconductor films are regulated by the way of changing its doping concentration,which lead to high transmission.Zone of the film shift visible spectral rang Vω,the semiconductor film is combined with the metal which thinness induced transmission frequency ωg locate in the edge of ultra violet range to compose the excellent D/M spectral transmission and reflection film systems.Besides,it is also necessary to select the most suitable combination of the thickness between the semiconductor and the metal films for forming the excellent transparent heat insulation film.