From September, 198S to August, 1984 seven patients with multiple metastatic lung cancer were treated with whole lung irradiation for the purpose of palliation at the Department of Radiation Oncology, Kosin College. All of 6 patients who were evaluable at the time of this report showed objective regreseion of metastatic lesions on poat-radiation chest x-rays and 4 of 6 patients with subjective symptoms due to pulmonary metastases had symptomatic relief by the treatment. Preaent report and review of literature support the fact that some selected patients with metastatic lung cancer can be benifited by whole lung irradiation with the radiation dose within lung tolerance.