The present invention provides a general-purpose electrosurgical device comprising: a main body which has a high frequency generating unit embedded therein for generating high frequency currents by receiving high frequency power (RF IN)； an RF-needle handpiece which is connected to the main body and comprises an electrode receiving the high frequency currents generated from the high frequency generating unit to apply the high frequency currents to skin of a user； a plasma handpiece which is connected to the main body and comprises an electrode receiving the high frequency currents generated from the high frequency generating unit to generate plasma； an RF-AC module which allows a return electrode in contact with a large area to skin of a user to become a pair with the RF-needle handpiece, and applies high frequency currents generated in the high frequency generating unit to the skin of a user in a pulse method； an operational panel unit which is provided in the main body and comprises an input means containing an RF needle mode, an RF-AC mode and a plasma mode and a display means outputting various kinds of information； and a control unit which, when any one mode among the RF needle mode, the RF-AC mode and the plasma mode is selected and input in the operational panel unit, controls an output of the high frequency generating unit according to the selected mode. According to one embodiment of the present invention, the device can selectively use functions of the RF-needle, the RF-AC and the plasma to be used in a complex and universal method and requires no replacement of surgical tools to increase convenience of work and reduce a work time.본 발명은 고주파 전원(RF IN)을 인가받아 고주파 전류을 발생시키는 고주파발생부가 내장되는 본체； 상기 본체에 연결되고, 상기 고주파발생부에서 발생되는 고주파 전류를 받아 사용자의 피부에 인가하는 전극을 포함하는 RF-니들용 핸드피스； 상기 본체에 연결되고, 상기 고주파발생부에서 발생되는 고주파 전류를 받아 플라즈마를 생성하는 전극을 포함하는 플라즈마용 핸드피스； 사용자의 피부에 넓은 면적으로 접촉되는 대극판이 상기 RF-니들용 핸드피스와 한 쌍을 이루어 상기 고주파발생부에서 발생되는 고주파 전류를 펄스방식으로 사용자 피부에 인가하는 RF-AC 모듈； 상기 본체에 구비되고, RF 니
