We report a case of a 77-year-old man with gastric cancer of Borrmann type 3, pyloric stenosis and liver invasion. Distal gastrectomy with liver film resection was performed. Pathological staging was IV (sig, pT4, pN2, H0, P0, CY0, M0, ly3, v3). We recommended adjuvant chemotherapy but the patient refused. He was diagnosed with a recurrence of peritoneal dissemination 4 months after the operation. He received docetaxel (DOC) at a starting dose of 40 mg/m 2 by iv infusion on day 1 and S-1 at a full dose of 100 mg/body daily for two weeks every three weeks. After 5 cycles of this combination therapy, the gastric cancer with peritoneal dissemination completely disappeared. He was recognized to have grade 2 hematologic toxicity, hand foot syndrome and stomatitis, and all treatment-related toxicities were resolved. No re-growth of gastric cancer has been seen for 9 months with this chemotherapy.