Surgery is not recommended for most of the liver metastases of lung cancer. Surgery can be considered if the treatment is stable and there are no other metastatic lesions except a single lesion in the liver. Liver metastasis of lung cancer is in advanced stage, which indicates that the tumor load is relatively large, and the metastatic lesions are often multiple, it is difficult to be able to remove the lesions completely by surgery, so most of them are not recommended to be operated. Some patients with single liver metastasis and the lung lesions have been controlled without other parts of metastasis can be considered for surgery. These patients still have a high probability of recurrent metastasis, so they must be closely observed after surgery and the lesions found must be treated promptly. In addition to surgery, radiofrequency ablation and other treatments can also be considered for single metastatic lesions, and some patients are also able to achieve some efficacy.