Combination of Chinese and Western medicines in the treatment of tumors attaches importance to both the diagnosis of tumors by Western medicine and the characteristics of dialectical treatment of Chinese medicine; focuses on the combination of the whole and the local, and takes into account the relationship between the host and the tumor, so as to make the diagnosis more perfect and objective, and to make the treatment plan more comprehensive and reasonable, and to give full play to the role of traditional Chinese medicine in the comprehensive treatment of tumors. Radiotherapy and chemotherapy are the common means of tumor treatment. Due to the toxic side effects of radiotherapy and chemotherapy, they often limit the successful completion of tumor patients’ treatment. Chinese medicine has the function of detoxification and efficiency enhancement in the process of treatment with radiotherapy and chemotherapy. Reducing digestive reactions: nausea, vomiting, decreased appetite, abdominal distension, abdominal pain, oral ulcers and so on are common digestive reactions of chemotherapy. The methods of regulating qi, strengthening spleen, harmonizing stomach and lowering rebelliousness can play a role in alleviating the role of digestive tract caused by chemotherapy and ensure the successful completion of chemotherapy and radiotherapy. Strengthening the protective effect of bone marrow: radiotherapy and chemotherapy often cause bone marrow suppression, resulting in the decline of white blood cells and platelets, which affects the smooth progress of the chemotherapy cycle. Therefore, applying the method of benefiting the qi and nourishing the blood during the period of intermittent chemotherapy can alleviate the bone marrow suppression caused by radiotherapy and chemotherapy, which ensures the smooth completion of the treatment and reduces the cost of the patients. Preventing liver function damage: Most chemotherapy drugs are metabolized in the liver, and liver function damage is a common toxic side effect of chemotherapy. The use of liver detoxification, nourishing yin and softening the liver can better reduce liver damage and alleviate the pain of patients. Reduced cardiotoxicity: anthracycline drugs are commonly used in tumor chemotherapy, and cardiotoxicity is the main reason to limit its use. Modern pharmacological experiments have shown that antioxidant and anti-free radical drugs can reduce the myocardial damage. Chinese medicines that activate blood circulation and remove blood stasis, such as Ligusticum chuanxiong, Salvia miltiorrhizae, Angelica sinensis, etc., have good antioxidant and anti-free radical effects, which can reduce the myocardial toxicity of anthracyclines. We can reduce myocardial toxicity by combining with blood-activating and blood-stasis-eliminating drugs when using chemotherapy containing anthracycline drugs. Preventing and controlling toxic side effects and sequelae of radiotherapy: radiotherapy is one of the main methods for treating lung cancer, but radiotherapy can cause a series of side effects and sequelae. Simultaneous application of traditional Chinese medicine during radiotherapy can achieve the purpose of both local and systemic treatment and better therapeutic effect. After radiotherapy, continue to take Chinese medicine to prevent recurrence and metastasis. For radiotherapy-induced radiation pneumonitis and radiation pulmonary fibrosis, Chinese medicine can be given to nourish yin and moisten the lung. For radiation enteritis leading to adhesive intestinal obstruction, herbal enema can be given to alleviate the symptoms. Sensitization with radiotherapy: some tumor cells enter dormancy due to lack of oxygen, so they are not sensitive to radiotherapy. Lack of oxygen cells is the root cause of failure of radical radiotherapy. Chinese medicine activates blood circulation and removes blood stasis with the effect of improving blood supply, increasing blood flow and reducing the number of oxygen-depleted cells, so it plays a sensitizing role in tumor radiotherapy. Chinese medicine treatment of tumor is an important part of its comprehensive treatment, especially plays a good role in the treatment of middle and late-stage tumors, improves the symptoms, improves the quality of life and prolongs the survival period. The efficacy of TCM in the treatment of middle and late stage tumors (including lung cancer, stomach cancer, liver cancer, esophageal cancer, breast cancer, colorectal cancer, etc.) is certain, without toxic side effects, and it can improve the symptoms, enhance the quality of life and prolong the survival period.