The invention relates to a safety cutting device (10) comprising: an electrically conductive cutting member (12)； a motor (20) for actuating the cutting member； a handle (30) for gripping the tool； and an emergency stop device (40) that is sensitive to a user making contact with the cutting member. The tool further comprises, according to the invention: - at least a first and at least a second manual contact electrode (32, 34)； - an electrical monitoring circuit (42) comprising the first manual contact electrode (32) and the cutting member (12)； - a device (44) for measuring a monitoring voltage (V
