Disclosed is a medical device for surgical operation. According to the present invention, the medical device for surgical operation comprises: a body unit held by a practitioner and including a supply tube and a suction tube for supplying and sucking a fluid, a regulating unit for regulating the flow rate of the fluid, and a power connection unit for receiving the control power from the outside, which are separately embedded therein； and a surgical treatment unit detachably coupled to the body unit, inserted into the body within the affected part, and composed of a conductive adapter which communicates with the supply tube and the suction tube through a hollow in a state of being electrically connected to the power connection unit and has an electrode tip for surgical treatment protruding at an end thereof, and an insertion tube which accommodates the adapter therein. The surgical treatment unit is rotated relative to the body unit, and the insertion tube moves relative to the adapter and selectively accommodates the electrode tip. According to the present invention, since the surgical treatment such as incision and the cleansing operation can all be performed through the surgical treatment unit having a single tubular shape, the medical device can be easily used for minimally invasive surgery on the affected part in the body such as laparoscopic surgery. Since the body unit and the surgical treatment unit are constructed in a structure capable of mutually detachable coupling, disinfection and cleaning for replacement or reuse can be easily performed such that convenience in maintenance can be achieved. Since the surgical treatment unit rotating relative to the body unit is provided depending on the position of the affected part in the body, precise surgical treatment by the practitioner can be easily performed without inconvenience.외과수술용 의료장치가 개시된다. 본 발명에 따른 외과수술용 의료장치는, 유체의 공급 및 흡인을 위한 공급관 및 흡인관과, 유체의 유량조절을 위한 조절부와, 외부로부터 제어전원을 인가받는 전원연결부가 각각 내설되어 시술자가 파지하는 바디부； 및
