How long a lung cancer patient can live after surgery depends mainly on the following four aspects: 1. As long as it is a malignant tumor, the postoperative survival mainly depends on whether it is treated early or not. However, for most tumors, the early stage can generally be asymptomatic, and they are usually in the middle to late stage when discovered. If the cancer is found by census, it is often early, which is helpful to improve the survival rate of patients after surgery. Therefore, after the age of 45, it is better to check the body once or twice a year if possible, and each time a chest X-ray is needed to help detect lung cancer earlier. 2.For patients, being able to confirm the disease, maintaining a peaceful state of mind and actively cooperating with surgical treatment will have a positive impact on the survival time after surgery. 3.Whether the treatment method is appropriate, whether the surgery is thorough and whether the treatment measures are timely largely affects how long a patient can live after lung cancer surgery. According to the patient’s pathological stage of cancer and physical condition, the most appropriate surgical treatment can be selected in time to eradicate the tumor, which can prolong the survival time after surgery. In addition, how long a patient can live after lung cancer surgery is also related to the patient’s physical function to a certain extent. A good physical function and strong immunity can resist the development of cancer and tolerate various drug treatments. Therefore, it is important for lung cancer patients to improve their immune function and enhance their resistance to tumor. Advanced lung cancer is usually not amenable to surgical treatment or only palliative surgical treatment, which improves patients’ quality of life to some extent, and its average survival time is 6 months, but it varies from person to person, some may be less than 6 months and some may be much longer than 6 months.