According to the national cause of death survey, among malignant tumors, lung cancer has been ranked the first for many years, and it is called “the king of cancers”, and its morbidity and mortality rate are extremely high, one of the reasons is that there are no obvious symptoms in the early stage of lung cancer, and when it is found, it is mostly found in the middle or late stage. What should we do when facing lung cancer? How much do you know about lung cancer? There are four traditional means of tumor treatment: surgery, radiotherapy, chemotherapy and traditional Chinese medicine, and lung cancer is no exception. The specific means to be used should be graded according to the condition. Early stage patients should be operated as soon as possible after diagnosis, and the cure rate can reach more than 95% or even be completely cured; for advanced lung cancer, a stratified and integrated treatment method should be adopted. Lung cancer can be categorized into central lung cancer and peripheral lung cancer according to its development site. Central lung cancer adopts bronchoscopy as the main treatment plan, while peripheral lung cancer adopts image-guided percutaneous puncture as the main treatment plan. In China, we were the first to propose the “sea-land-air” joint operation: endoscopic interventional therapy for tumors in the airway through the airway (land route), interventional therapy for vascular-rich tumors or vascular blockage through the blood vessels (sea route), and image-guided percutaneous puncture for solid tumors with metastases in the lungs or in other parts of the body (air route). Treatment. Commonly used treatments under bronchoscopy include thermal cauterization (laser, radiofrequency, microwave, high-frequency electrocautery, etc.), cryotherapy, endoprosthesis placement, and photodynamic therapy. Image-guided percutaneous puncture treatment includes targeted physical therapy (cold ablation therapy, thermal ablation therapy, etc.), targeted radiation therapy, targeted chemotherapy and targeted vascular intervention. Brachytherapy (radioactive particle implantation) can be administered to patients who cannot undergo external radiotherapy, and local drug injection or slow-release chemotherapy implantation is feasible for patients who cannot tolerate systemic chemotherapy. After standardized comprehensive treatment, the one-year survival rate can be increased by more than 30%, and the quality of life of most patients is improved.