The invention discloses a glass film adhering device which comprises a worktable, slide rails, sliders, a support plate, a first mounting plate, a second mounting plate, a press roll, a rubber brush plate, mounting frames and a protective film mounting roll. The slide rails are fixedly connected onto the worktable, the mounting frames are slidably connected onto the slide rails by the sliders, the support plate is fixedly connected onto the mounting frames, the first mounting plate and the second mounting plate are fixedly connected onto the support plate, the press roll is rotationally connected onto the first mounting plate, the rubber brush plate is fixedly connected to the bottom of the second mounting plate, and the protective film mounting roll is rotationally connected onto the mounting frames. The glass film adhering device has the advantages of simple structure, convenience in use and maintenance and low manufacturing cost.