The invention described is a portable electrocauter used especially for electrofulguration, electrodesiccation and electrocoagulation. It contains a source of energy and an aplicator. Electrocauter is provided with the source of DC with the maximal current of 1 mA and voltage between 0.8 to 12 kV. The aplicator (1) is provided with precisely aiming finish and the patient is conductively connected with the equipment by disposable grounding electrode while the output of the discharge between the working electrode and the surface of the skin is in the range of 0.3 to 4.0 W.