Laser acupuncture physiotherapy is the product of the development of modern medicine. It combines laser technology with acupuncture to emit light or spots corresponding to human meridians and acupoints, and implements disease treatment and health care. \ x0d \ x0d \ The main principle of microwave therapy and infrared therapy is to regulate the function of organisms by heating; Magnetic therapy, a method of treating diseases by using magnetic field to act on human body. The magnetic field affects the current distribution of human body, the movement of charged particles, the permeability of membrane system and the magnetic moment orientation of biopolymer. Change the physiological and biochemical processes of tissues and cells, and have the effects of analgesia, detumescence and promoting blood and lymphatic circulation. \x0d\ The biggest difference between laser therapy and the above therapy is that the light energy it emits is absorbed by human body to produce therapeutic effect, which cannot be achieved by other therapies. \x0d\ Professional laser therapy uses red light with a wavelength of 630 nm, and the heat of the red light spectrum is the lowest in the seven-color spectrum of visible light, so red light will not have obvious fever when it irradiates human skin. The biological effect characteristics of red light mainly refer to the chemical effect and stimulation effect of light energy, not the thermal effect. Red light has mild spectral performance but strong photodynamic force, so red light can promote cell activity and blood vessel expansion, accelerate blood flow and dredge meridians and blood vessels, and achieve the purpose of effective treatment and health care. Therefore, the beauty of professional laser therapy phototherapy lies in unconsciously treating diseases.