A 79-year-old man was admitted to our hospital with right hypochondrium pain. His chest X-ray and CT scan showed a mass lesion on the left upper lobe, and multiple metastases in the liver. The diagnosis was non-small cell carcinoma of the lung. He received 4 courses of combined chemotherapy of carboplatin and docetaxel every 4 weeks. At the end of 4 courses, a partial response was achieved. Two courses of a in similar regimen were added at the time of a later recurrence, and the effect was a partial response. Carboplatin+docetaxel combined chemotherapy, which can be conducted relatively safely on an outpatient basis, may be an effective treatment for non-small cell lung cancer in the elderly.