A surface bonding method for bonding a PET film and silica gel buttons is provided which can shorten the manufacturing period, reduce the required number of fixtures and improve production efficiency. The surface bonding method comprises the following steps: providing a PET film and performing surface treatment on the PET film, coating a layer of UV glue on the PET film, providing a plurality of silica gel buttons, performing surface treatment on the bottom surfaces of the silica gel buttons, placing the silica gel buttons into the bonding fixture, placing and fixing the PET film to the bonding fixture, stitching a transparent plate onto the PET film, and applying the exposure of UV-light on the bonding fixture.