Magnetic therapy is a simple and effective scientific method to treat some diseases by using artificial magnetic field (external magnetic field) to act on meridians, acupoints and diseased parts of human body, including oral and external magnetic drugs. Magnetic therapy has developed rapidly in recent years because of its wide range of symptoms, obvious health care effect, no trauma, no pain, little side effects, safety, reliability, easy to learn and understand, and economy. This is a new method worth popularizing widely. After nearly forty years of practice and research, the application of magnetic field in medical treatment in China has the following characteristics: 1. Wide indications; 2. Good curative effect; 3. Time-saving and convenient; 4. Treat both diseases; 5. Two-way treatment effect; 6. No pain, no damage and good safety. Magnetic therapy belt is a clever use of magnetic therapy.