The present invention relates to a medical lighting device using an organic light emitting diode (OLED), comprising a removable front housing 10 and the rear housing 50, a plurality of grips (left and right sides of the front and rear housings 11, 50) 11 and 51 are provided with a main body 60； It is electrically connected to the charging terminal 57 which is installed penetrating inward and outward from one side of the rear housing 50 and mounted inside the rear housing 50 so as to be charged by power supplied from the outside through the charging terminal 57. A battery 55； The PCB substrate 40 mounted on the upper surface of the battery 55 by applying a constant current boost-up circuit to boost and supply the voltage of the battery 55 to a preset voltage according to a PWM signal. ； An OLED panel 30 electrically connected to the PCB substrate 40 and mounted on a front surface of the PCB substrate 40 so that the lighting and brightness are controlled according to a signal supplied from a microcontroller of the PCB substrate 40； The touch panel 20 is installed in the upper part of the OLED panel 30 so as to be configured as a 4-wire resistive film and to be in contact with the OLED panel 30 by the pressure applied from the top to adjust the illumination brightness by using coordinate recognition using a resistance value of vertical and horizontal. )； It is provided on the rear and side surfaces of the rear housing 50 to control the main power supplied to the PCB substrate 40, the OLED panel 30, and the touch panel 20 from the battery 55 and the operating power of the OLED panel. It consists of； the main power switch 54 and the auxiliary power switch 56.본 발명은 유기발광다이오드(OLED)를 이용한 의료용 조명장치에 관한 것으로, 분리가능한 전방하우징(10)과 후방하우징(50)으로 구성되되, 전후방하우징(11,50)의 좌우측면에는 복수개의 그립부(11,51)가 구비되는 본체(60)； 상기 후방하우징(50)의 일측면에서 내외측으로 관통 설치되는 충전단자(57)에 전기적으로 연결되어 충전단자(57)를 통해 외부에서 공급된 전원으로 충전 가능하도록 후방하우징(50)의 내측에 장착되는 배터리(55)； 상기 배터리(55)의 전압을 PWM 신호에 따라 사전에 설정된 전압으로 승압하여 공급되도록 정전류 부스트업 회로가 적용되
