The invention discloses an elevator door sheet film attaching device and belongs to the field of elevator machinery. The elevator door sheet film attaching device is composed of a feed motor, a conveying belt with locating ribs, a dustproof curtain support, a dustproof curtain, a pneumatic supporting base, a pneumatic cylinder, a photoelectric sensor, a boosting rod, a T-shaped supporting frame, a film attaching device body, a plate with a film, a slide block with holes, a material wheel, a push plate, an upper baffle, a clearance adjusting rod, an electric control cabinet, a start button, a scram button, a knife rest, a partition knife, knife buckles, a servo motor, a synchronous belt, a waste wheel, a roller supporting frame, another photoelectric sensor, a wheel lifting plate, edge pressing wheel springs, edge pressing wheels, a film clamping wheel, a supporting base, a supporting insertion frame, a clearance adjusting rod nut, a discharge conveying belt and a discharge motor. The elevator door sheet film attaching device has the advantages that the height of the material wheel is adjusted through the clearance adjusting rod, and clearance-free attachment of a protection film to an elevator door sheet can be guaranteed.