It is not possible to generalize how long it takes for cancer patients to see the effect of Chinese medicine, the specific effective time is related to the patient’s physical condition, psychology and spirituality, clinical stage, pathology type and other factors. Generally speaking, the addition of Chinese medicine to treat cancer can effectively improve the quality of survival of patients and alleviate the symptoms. Chinese medicine can treat all kinds of symptoms appearing in cancer through the method of diagnosis and treatment, and can also improve the side effects after radiotherapy and chemotherapy, and achieve a better therapeutic effect by strengthening one’s physique. Once cancer patients are diagnosed, they should actively go to regular hospitals for treatment to control the progress of the disease. The effect time of specific oral Chinese medicine varies from person to person, and they should set up the confidence in treatment and carry out regular treatment.