If liver cancer metastasizes to lungs without treatment, most patients can live for 6 to 12 months. The specific situation should also be judged according to the treatment effect and the development of the disease. If liver cancer has developed lung metastasis, it means that it has already reached the advanced stage, and if no effective treatment is given, the general survival time is 6 to 12 months. If patients have ideal treatment effect through active treatment such as targeted therapy, interventional therapy, etc., the survival time will be prolonged. For liver cancer with lung metastasis the treatment should still focus on the liver and deal with lung metastasis at the same time, through effective treatment, the patient’s life can be prolonged. It should be noted that liver cancer patients can minimize the adverse effects of the disease through “early detection, early diagnosis and early treatment”, and it is possible for patients to survive for a long time, and patients should build up confidence in treatment.