Abstract: A slicing device suitable for slicing a workpiece is provided. The slicing device includes at least two rollers and a wire. A slicing passage for the workpiece to pass through is formed between the two rollers. The two rollers are winded by the wire to form a plurality of rings disposed in intervals parallel to each other. When the two rollers rotate to move the rings, the workpiece enters the slicing passage and presses on a portion of the rings spanning the two rollers so that the workpiece is sliced. Each roller has a circular cross-section, and the diameter of the circular cross-section varies along the length direction of each roller, so as to adjust the sizes of the rings.