In some diseases, laser blood oxygen therapy instrument can play an effective auxiliary therapeutic effect. It mainly separates the high concentration of oxygen in the air in the room, which is combined with the aid of semiconductor laser to enhance the blood oxygen binding and binding capacity of red blood cells, having a similar effect to hyperbaric oxygen. According to some related research reports, it can achieve the effect of lowering triglycerides and cholesterol by reducing blood viscosity, speeding up blood flow and avoiding blood stagnation, which can prevent the effect of thrombosis; it can also assist with drugs to prevent, treat and stabilize blood pressure; because it can provide high concentration of oxygen and easy to operate, it can relieve the symptoms of oxygen deficiency such as cyanosis of mouth and lips and difficulty in breathing. It can be used in the recovery period of coronary heart disease and cerebral infarction as an auxiliary treatment. In addition, it can regulate the immune response in the body, improve the body’s ability to resist disease, and facilitate the recovery of infectious diseases as well as allergic immune and connective tissue diseases.