A 75-year-old man was admitted to our hospital with hematoemesis. Gastrofiber-scopy revealed that type 3 gastric cancer was widespread in the lesser curvature. Multiple liver metastases 5 cm in diameter were shown on CT. We thought that the case was unresectable, and TS-1/CDDP chemotherapy was performed. TS-1 (80 mg/body/day) was orally administered and CDDP at 20 mg/body/day by intravenous drip infusion a week for 3 weeks followed by a drug-free 2 week period as the first course. After the third course, the primary lesion and the liver metastasis showed a partial response in terms of size. No serious drug adverse reaction was observed. Since there was no longer any reduction of the tumor, gastrectomy and coagulation therapy for liver metastasis were performed, and he has been alive for 15 months without recurrence. Combined use of TS-1 and CDDP is effective as neoadjuvant chemotherapy for advanced gastric cancer.