The medical laser device relieves pain by irradiating the acupuncture point with a laser on the acupuncture point in oriental medicine. The device includes a power supply unit, a control unit, a display unit, a safety device, and the like, and a laser is irradiated through a suction cable connected to the main body. When a 650-nm-wavelength laser is irradiated to the skin, only light energy is transmitted to the body through the surface of the skin, and light energy (laser) causes a photochemical reaction to stimulate and activate tissues and relieve pain.It can treat various areas simultaneously with a total of 12CH of 6 channels, treat more patients, and it is also very easy to use with an air adsorption laser cup.