Vacuum winding organic matter evaporation protection device

The invention relates to the technical field of film coating protection, in particular to a vacuum winding organic matter evaporation protection device which comprises a base film, a deposition roller, evaporation slits, an air curtain and a low-temperature cold trap. The evaporation slit is formed in the outer side of the deposition roller and is communicated with the heating cavity; the organic matter passes through the heating cavity, is sprayed out from the evaporation slit in a gaseous molecule form, and is in contact with the base film on the deposition roller; the air curtains are arranged on two sides of the evaporation slit, one end is connected with the evaporation slit, and a first slit is formed between the other end and the base film; and one end of the low-temperature cold trap is connected with the air curtain, and a second gap is formed between the other end of the low-temperature cold trap and the base film. The air curtain and the low-temperature cold trap are arranged on the edge of the dep