How long you can live with cancer cannot be determined. The survival period of cancer patients is related to the type of cancer, pathological stage, patients’ own psychological factors, nutritional status, treatment, etc. Many early stage cancers or carcinoma in situ, such as colorectal cancer, have a 5-year survival rate of over 80% after active treatment. Patients with mid-stage cancer also have a chance to survive for a longer time if they have effective treatment, for example, the 5-year survival rate of mid-stage gastric cancer is about 40%-60% after effective treatment. Some patients with advanced cancer may have less than half year or even shorter survival time, like the 5-year survival rate of advanced pancreatic cancer is only 5%. In the process of cancer treatment patients should maintain a good state of mind and quality of life, and through personalized treatment plans formulated by doctors, systemic treatment is carried out to enhance patients’ immunity, which may eventually achieve long-term survival with tumor. In conclusion, in the face of cancer, patients need to quit smoking and limit alcohol, eat scientifically, exercise regularly and cooperate with doctors with a positive attitude.