Cancer fever often accompanies cancer pain, cancer chest, ascites and cancer bone pain and other symptoms in the middle and late stages of cancer, and it has a high chance of occurrence, which makes patients suffer mentally and physically and causes patients to lose weight and immunity, so we should pay great attention to cancer fever. In addition to applying conventional high fever and fever-reducing drugs, TCM approach firstly, if the fever is low, i.e. below 38°C, oral Chinese medicines can be taken, such as Chai Hu Oral Liquid, Qing Liver and Bile Oral Liquid, etc. Of course, if patients with weak spleen and stomach must be prohibited, it is recommended to apply TCM tonics with identification. In addition, you can also use some Chinese medicine to warm up the blood vessels for foot soaking, so that the body temperature is lowered by way of body sweating, which will not cause liver damage due to drugs, but also no gastrointestinal tract burden, and at the same time can reduce the patient’s body temperature. In addition, Chinese herbal medicine can be used for enema after decoction to bring down the body temperature.