Automatic bottom film laying device and method

The invention discloses an automatic bottom film laying device and method. The automatic bottom film laying device comprises a film pulling device installed on a Y-direction linear motion module and a front film pressing device, and the film pulling device is provided with a film clamping mechanism used for clamping a film, a rear film pressing mechanism used for pressing a to-be-cut part on the film on a supporting plate and a film cutting device used for cutting the film flattened on the supporting plate; and the front film pressing device is used for pressing the front end of the film on a device to be coated with the film. The automatic bottom film laying method comprises the steps that the film pulling device pulls out the film to enable the film to cover the upper surface of the device to be coated with the film, the front film pressing device presses the front end of the film on the device to be coated with the film, the film clamping mechanism loosens the film and returns to the original position, the