A bacteriostatic dyed window film is successively composed of a bacteriostatic coating, a first transparent polyester or polyimide plastic film, a first dyed acrylic acid adhesive layer, a second transparent polyester or polyimide plastic film, a second acrylic acid adhesive layer and a release film, which are compounded as a whole. An acrylic coating is preformed on the outer surface of the firsttransparent polyester or polyimide plastic film. The bacteriostatic coating is formed by the following steps: coating the outer surface of the transparent polyester or polyimide plastic film substrate having the acrylic coating with a bacteriostatic composition, volatilizing a solvent at low temperature of 50-70 DEG C and carrying out ultraviolet curing under a high-pressure mercury lamp. According to the above bacteriostatic dyed window film, the bacteriostatic coating undergoes ultraviolet curing instead of high temperature baking-curing so as to avoid the defect that an organic bacteriostatic agent has poor heat stability, and the bacteriostatic coating of 4-12 microns thick can be formed to provide a lasting bacteriostatic effect; and the bacteriostatic dyed window film has excellentwear resistance and antifouling effect.