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This utility model relates to the field of stacking device technology and discloses an anti-fog film stacking device, including a stacking frame, a pallet frame, and a bidirectional lead screw assembly. Several pallet frames are arrayed inside the stacking frame. Several slots are opened through the top of the pallet frame. A protective pad is provided on the top of the pallet frame. The protective pad is fitted and fixedly connected to the pallet frame and the slots. A set of side slots are opened through the outer sides of the pallet frame. In this utility model, the rolled anti-fog film tube is placed on the top of the pallet frame. The slots fit the curvature of the anti-fog film tube to position it. The protective pad on the top of the slot is made of silicone to increase the static friction between the film and the pallet, providing good anti-slip properties and preventing the film tube from sliding and shifting during transportation or stacking. The dual-axis motor is started, and the bidirectional lead screw is rotated synchronously by the dual-axis motor, driving the two side slides to move symmetrically laterally along the pallet frame.