The device platform is developed and designed according to Lenz's law. It is composed of a manned device with a high-strength magnet and a non-ferromagnetic escape pipeline. In an emergency, people in danger can escape through the pipeline with the help of the manned device at a stable and safe speed. Without electricity, relying on the balance of gravity and magnetic force to achieve uniform falling; Simple operation, no need for professional training; The guide rail is attached to the building, and the escape height is not restricted by the height; It can be entered at any floor, and the descending speed is adjustable and controllable, with high escape efficiency. In addition, the device has low cost and can be reused. The guide rail cost is two to three hundred yuan per meter. After mass production, the cost of a set of escape device is only several thousand yuan, which has a good prospect of popularization and application.