The invention relates to an automatic roller shutter door and a use method and application thereof. The automatic roller shutter door comprises a roller shutter, telescopic devices and magnetic closing devices. The magnetic closing devices are arranged on two sides of the roller shutter respectively and attract the lower end of the roller shutter. The telescopic devices are arranged under the magnetic closing devices and make contact with the magnetic closing devices. The telescopic devices drive the magnetic closing devices to achieve automatic opening and closing of the roller shutter door. Compared with a traditional manual cage roller shutter door, the automatic roller shutter door is high in automation degree, high in work efficiency and long in service life, does not need manual operation, and saves time and labor. Compared with an existing semi-automatic roller shutter door, the automatic roller shutter door is simple in structure, and convenient to install, use, maintain and repair.