After surgical resection of lung cancer, early stage patients can live for 5 years or even longer, while late stage patients’ survival cycle is only 1~2 months. Surgical resection is one of the more important treatments for lung cancer. Generally speaking, in early stage lung cancer patients whose cancer cells have not yet metastasized and spread to lymph nodes and distant organs, most of them can be cured through radical surgery, and their survival cycle can be more than 5 years. However, in the case of middle and late stage patients, the cancer cells have already spread and metastasized, and palliative surgery and local excision surgery are the mainstay, which cannot completely remove the tumor tissues and cancer cells, and need to be accompanied by radiotherapy, chemotherapy and other treatments, and the survival period of the patients will be much shorter, which may be in the range of 1 to 2 months.