The utility model discloses a screen rubberizing device which comprises a machine body, and a screen carrying table and an optical cement carrying table are arranged on the machine body. The film tearing mechanism is used for tearing a film of the optical adhesive; the laminating mechanism is installed on the machine body, the laminating mechanism comprises a laminating frame, a laminating base band, a laminating roller and a separating roller, and the two ends of the laminating base band are fixedly arranged at the two ends of the laminating frame respectively; an adhesive plate is arranged at the bottom end of the attaching base band, the attaching roller is pivoted to the attaching frame and can reciprocate between the two ends of the attaching frame, and the attaching roller is used for downwards jacking and pressing the attaching base band to enable the adhesive plate to move downwards when the attaching roller reciprocates between the two ends of the attaching frame; the separating roller is pivoted to the laminating frame and can reciprocate between the two ends of the laminating frame; and the separation roller is used for upwards jacking and pressing the laminating base band when moving between the two ends of the laminating frame so as to enable the adhesive plate to move upwards. According to the utility model, the diaphragm of the optical cement can be automaticallytorn off, and the optical cement after the diaphragm is torn off is attached to the screen.