A method for manufacturing a car roller shutter door, comprising: Step: injection molding a film sheet through a first injection mold, and then cutting the film sheet according to desired specification through a cutting mechanism to form a single film piece; Step: heating the film piece to soften the film piece; and Step: subjecting the softened film piece to a vacuum forming and molding processing through a vacuum forming method to mold the film piece into a desired shape, wherein a bottom surface of the film piece is recessed with a groove; the method being characterized in further comprising: Step: placing the film piece after vacuum forming and molding in a second injection mold, wherein an injection molding machine drives the second injection mold to clamp mold and injects molten rubber into the second injection mold, such that the molten rubber and the film piece are integrally formed in the second injection mold, such that the bottom surface of the film piece is connected with a rubber piece protruding into the groove of the film piece to form a roller shutter strip; Step: removing the roller shutter strip after the injection molding machine drives the second injection mold to open mold; and Step: providing a flexible substrate, and placing and laminating a required number of roller shutter strips on the flexible substrate in a neat and orderly manner, wherein a side of the rubber piece away from the film piece is laminated to the flexible substrate to form the car roller shutter door. Step: injection molding a film sheet through a first injection mold, and then cutting the film sheet according to desired specification through a cutting mechanism to form a single film piece; Step: heating the film piece to soften the film piece; and Step: subjecting the softened film piece to a vacuum forming and molding processing through a vacuum forming method to mold the film piece into a desired shape, wherein a bottom surface of the film piece is recessed with a groove; the method being characterized in further comprising: Step: placing the film piece after vacuum forming and molding in a second injection mold, wherein an injection molding machine drives the second injection mold to clamp mold and injects molten rubber into the second injection mold, such that the molten rubber and the film piece are integrally formed in the second injection mold, such that the bottom surface of the film piece is connected with a rubber piece protruding into the groove of the film piece to form a roller shutter strip; Step: removing the roller shutter strip after the injection molding machine drives the second injection mold to open mold; and Step: providing a flexible substrate, and placing and laminating a required number of roller shutter strips on the flexible substrate in a neat and orderly manner, wherein a side of the rubber piece away from the film piece is laminated to the flexible substrate to form the car roller shutter door. Step: placing the film piece after vacuum forming and molding in a second injection mold, wherein an injection molding machine drives the second injection mold to clamp mold and injects molten rubber into the second injection mold, such that the molten rubber and the film piece are integrally formed in the second injection mold, such that the bottom surface of the film piece is connected with a rubber piece protruding into the groove of the film piece to form a roller shutter strip; Step: removing the roller shutter strip after the injection molding machine drives the second injection mold to open mold; and Step: providing a flexible substrate, and placing and laminating a required number of roller shutter strips on the flexible substrate in a neat and orderly manner, wherein a side of the rubber piece away from the film piece is laminated to the flexible substrate to form the car roller shutter door.