The invention provides a technical scheme of a cable stripping device. The device comprises a base, the upper portion of the base is slidably provided with a sliding plate, the upper surface of the base is provided with a lower locating groove matched with a to-be-processed cable, the lower surface of the sliding plate is provided with an upper locating groove matched with the to-be-processed cable, one end of the sliding plate is provided with a feed hole, the other end of the sliding plate is hinged to the lower end of an oscillating bar, the upper end of the oscillating bar is hinged to aneccentric wheel, the eccentric wheel is driven by an electromotor to rotate, one end, close to the oscillating bar, of the upper portion of the sliding plate is fixedly provided with an elastic arm, the eccentric wheel is matched with the elastic arm, and the other end of the elastic arm is fixedly provided with a cutting knife. Compared with manually adopting a wallpaper knife in the prior art, the automatic cutting mode not only improves the working efficiency and frees the labor force, but also avoids the harm of manual cutting to the human body, and has very strong application and promotion value.