Kidney cancer usually reaches an advanced stage by the time it metastasizes to the lungs, leading to a generally low survival rate. For early and intermediate-stage kidney cancer patients, surgical treatment is typically employed. However, in advanced stages, especially when there are lung metastases, surgical methods are often not suitable. However, if the metastatic foci are small, it is still recommended to remove them surgically. Immunotherapy can be used for lung metastases, such as using interferon or targeted therapy. Targeted therapy tends to be effective, commonly using drugs like sorafenib and sunitinib for first-line or second-line treatment of metastatic kidney cancer. Although a complete cure is not possible, these treatments can significantly prolong the patient's lifespan, improve survival rates, and alleviate symptoms.