The invention belongs to the technical field of film materials, and particularly relates to a transparent heat-insulating 
ultraviolet-proof 
composite film based on a photonic 
quasicrystal material anda preparation method thereof. The 
composite film structurally comprises a transparent substrate layer, a photonic 
quasicrystal functional film layer, an 
adhesive layer and a strippable layer. The photonic 
quasicrystal film is formed by 
polymer core-shell-structure microspheres and 
infrared functional nanoparticles which are stacked and arranged in a three-dimensional ordered manner through a specific process, and has adjustable structure color and 
optical transparency. The structural color, transparency and 
ultraviolet and 
infrared blocking 
wavelength range of the film can be regulated and controlled by regulating and controlling the core 
microsphere size, shell thickness and 
refractive index of the core-shell-structure microspheres and the content of the 
infrared functional nanoparticles, and the 
ultraviolet and infrared blocking efficiency can also be controlled by regulating and controlling the thickness. The formed 
composite film is high in 
ultraviolet light blocking efficiency, high in visible light 
transmittance and good in heat insulation effect, and has excellent transparent heat insulation ultraviolet-proof and explosion-proof performance, and can be used for 
energy conservation, explosion prevention and the like of automobiles and building glass.