Shock wave therapy instrument mainly consists of shock wave source system, shock wave and human body coupling medium, positioning system, operating system, treatment bed, which is composed of five major system components, of which the core components are mainly shock wave source system and positioning system. Mainly divided into two types of focused and dispersive, its role is different: 1, focused shock wave therapy instrument: focused shock wave has the propagation characteristics of light, is the shock wave generator to generate shock waves through the hemispherical reflection device focus, through the liquid in the water capsule propagation, and finally act on the patient treatment site. It is mainly used for delayed fracture healing, femoral head necrosis and deep osteochondral injury diseases. It has the osteogenic effect of stimulating osteoblast proliferation and collagen synthesis, as well as the production of pro-vascular growth factor, which is a good adjunctive treatment for the above diseases. But shock wave therapy is only an auxiliary treatment, but also for the specific situation with other treatments to promote recovery, such as delayed healing of fractures also need to supplement calcium and vitamin D, oral Chinese medicine, moderate exercise, etc.; 2, dispersive shock wave therapy instrument: dispersive shock wave propagation is dispersive, so also known as dispersive shock wave. It is through the air compressor to continuously compress the air and then repeatedly push the bullet body, after mechanical transmission impact treatment head, and finally act on the treatment site. Its treatment waveform is flatter than the focused shock waveform, and the peak energy is smaller, but the average energy is high enough to achieve the treatment purpose and reduce tissue damage and adverse reactions. It is mainly used in heel pain, frozen shoulder, tennis elbow and other tendon terminal diseases. It has the effect of improving tissue microcirculation and accelerating the removal of metabolic decomposition products, and can also improve the pain threshold, thus reducing pain, and usually has a better adjunctive treatment effect for the above diseases. The same also need to be combined with other treatments, such as the combination of anti-inflammatory, pain relief, braking and other treatments, in order to achieve the desired therapeutic effect. Therefore, when using shock wave therapy instrument treatment, the appropriate instrument should be selected for treatment according to the disease, which can better relieve the condition and is beneficial for recovery.