High-frequency electrotome

The utility model provides a high-frequency electrotome which comprises a sheath, a first electrode, an insulation connecting piece, a second electrode and a conductive piece, and the conductive piece is fixedly connected with the far end of the sheath; the first electrode is connected with the far end of the sheath and can stretch out and retract in the axial direction of the sheath, and the electric connection state between the conductive part and the first electrode is kept in a conducting state; the near end of the insulating connecting piece is connected with the far end of the first electrode; the second electrode is connected with the insulation connecting piece and comprises a conduction end located at the near end of the insulation connecting piece, a first gap is formed between the conduction end and the first electrode, and the first gap enables the electric connection state of the second electrode and the first electrode to be a disconnected state; and when the first electrode retracts to a set po