The invention relates to a thermochromic intelligent film and a preparation method therefor. The thermochromic intelligent film consists of a substrate and a complex film layer, wherein the complex film layer comprises a thermochromic functional layer with ambient temperature adjusted heat, a film layer with an
infrared reflection function is arranged at the lower part of the thermochromic functional layer and can be used for increasing the efficiency of annealing, a
barrier layer which is used for preventing the thermochromic functional layer from oxidation or reduction
metamorphism in a heat-treatment annealing and crystallizing modification process is arranged on the thermochromic functional layer, and a
dielectric film layer is arranged on the
barrier layer and is used for adjusting the appearance color and other protective actions of the complex film layer. The thermochromic intelligent film has the characteristics that the arrangement of the
infrared reflection layer is beneficial to the increase of annealing efficiency, the arrangement of the
barrier layer is beneficial to the improvement of
crystallization quality of the thermochromic functional layer, and meanwhile, the heating annealing treatment on the complex film layer in an atmospheric environment and a vacuum environment can be achieved. According to the thermochromic intelligent film disclosed by the invention, after related film
layers are subjected to vacuum plating, the crystallizing modification of the film can be carried out by adopting
infrared vacuum-
atmosphere environment, infrared atmospheric environment or
tempering furnace heat treatment.