Magnetic therapy is a purely physical therapy that uses the physiological changes that occur in the human body after being exposed to a magnetic field. It is hoped that the pathological changes in the body will be eliminated and alleviated with the help of the magnetic field, so that the patient’s disease can be treated. At present, the indications of diseases that can be treated by magnetic field are mainly chronic inflammation, acute inflammation or diseases of joint tissue and soft tissue, which may play a role in eliminating edema, relieving pain and increasing the function of organ and joint movement under the action of magnetic field.