Abstract: A film pasting device for pasting a protection film on a display screen is provided, which includes: a main body having a receiving slot for receiving the protection film so as for the display screen to be disposed on the protection film; a base disposed in the receiving slot for carrying the protection film and the display screen; a positioning member disposed on the main body for positioning the display screen on the base; and a vertical movement member disposed over the main body and movable towards the base so as to provide a vertical force for pressing the display screen down, thereby pasting the protection film on top and side surfaces of the display screen through the vertical force provided by the vertical movement member and a horizontal force provided by the main body, respectively. Therefore, the present invention improves the film pasting quality and saves operation time.