The invention discloses a re-pasted silica gel protective film. The re-pasted silica gel protective film comprises a base material layer, an adhesive layer and a release-type layer which are installed successively. The adhesive layer is prepared by the following components by weight: 20-50 parts of an organic silicone adhesive, 3-8 parts of a curing agent, 5-10 parts of a catalyst, 1-3 parts of a coupling agent and 5-15 parts of dihydric alcohol. No residue is kept while the silica gel protective film is torn down from a screen, and a contaminant, such as dusts, cannot easily be adhered to the film surface, and the re-pasting can be realized. Ultraviolet light is used for irradiating the silica gel protective film for 1-3 min before re-pasting, so the re-pasting effect can be optimized. The catalyst in the adhesive layer is important to the re-pasting effect of the silica gel protective film.