Abstract: An electrosurgical pencil with synchronous evacuation function includes a pencil body defined with a first containing space and a second containing space therethrough. The first containing space is adapted to contain an electropencil. The second containing space is adapted to be an evacuation passage. A first front end of the electropencil is mounted with a replaceable electrode. A first rear of the electropencil is adapted to connect to an electric wire connected to a current generator. A second front end of the second containing space is integrally formed a tubular body having an opening. A second rear end of the second containing space is mounted with a connector. The connector is connected to a suction instrument with a negative pressure via a soft tube. When the end portion of the electrode operates, the opening of the evacuating passage draws smoke and blood at the same time.