A screen protector structure is provided with a plurality of functional films and each of the functional films has a substrate. An adhesive layer is combined on the bottom face of each substrate and the functional layer is overlapped and bonded on the top face of the substrate. When in manufacturing, the screen protector can be produced according to customers designation so that, for example, a fragrance film, an anti-scratch bacteriostatic film, an anti-scratch blue light reduction film, or an anti-scratch antistatic film can be overlapped and bonded together so as to accomplish the manufacturing of the screen protector designated by customer. When the upmost film is out of function due to wearing, it can be torn off and replaced with a new functional film easily.
