The utility model provides a portable film sticking device capable of effectively preventing bubbles from being generated, which comprises a base, a sliding piece, a compression roller and an exhaust device, the compression roller is rotatably mounted on the sliding piece, the sliding piece is slidably mounted on a guide rail of the base, and the base is provided with a positioning device for fixing a
mobile phone and a film group. Comprising an elastic strip, a warped piece and a blocking column, the blocking column is located at the end of the elastic strip and vertically arranged, the warped piece is located on the blocking column and used for warping the edge of the protective film, and a pushing column for pushing the blocking column is arranged on the sliding piece. When the sliding piece moves to the
tail end of the base, the pushing column of the sliding piece pushes the blocking column, and the blocking column drives the warped piece to move backwards or deviate laterally, so that the protective film completely falls onto the screen, and air is perfectly exhausted from a single side. According to the exhaust device designed by the utility model, the interaction among the components such as the elastic strip, the warped piece and the bumping post is utilized, so that air below a film can be effectively exhausted from a single side while the film is pasted, and the probability of bubble formation is obviously reduced.