Heat therapy is a kind of physical therapy, i.e. using various heat therapy instruments to achieve the therapeutic purpose by promoting heat production in human body, which is more widely used in the treatment of tumor and some benign diseases. Because of the imperfection of tumor vascular endothelium, its blood flow rate is slower than normal tissue blood flow rate, so heat therapy can make tumor parts generate heat through various equipments and reach certain accumulation, such as heat therapy body surface temperature 39.5-45℃, tumor location temperature is higher than body surface location 3-7℃, it is generally believed that heat therapy above 43℃ can cause tumor cell death, while heat therapy below 43℃ can inhibit tumor growth, and at the same time can promote local It is generally believed that heat therapy above 43℃ can cause tumor cell death, while heat therapy below 43℃ can inhibit tumor growth and promote local immunity to kill and control tumor. In addition, heat therapy can also be combined with radiotherapy and chemotherapy to play a sensitizing effect.