We report 2 cases of postoperative long-term survival of gastric cancer with synchronous liver metastasis. Case 1 was a 65- year-old man. Examination for anemia revealed advanced type 5 cancer in the antrum and suspected invasion of the transverse colon. A nodule 15mm in diameter suspected to be metastasis was also found in the liver S2. As no unresectable factors were present, partial hepatectomy, partial transverse colon resection, and distal gastrectomy were performed. Postoperatively, S-1 chemotherapy was administered for 14 months. Seven years after surgery, the patient is alive without recurrence. Case 2 was a 67-year-old woman. Examination for anemia revealed advanced type 2 cancer in the lower gastric body and a nodule 12mm in diameter suspected to be liver metastasis in the liver S8. Partial resection of the liver, total gastrectomy, cholecystectomy, and splenectomy were performed because no unresectable factors were observed. Postoperatively, chemotherapy with S-1 was administered for 38 months. Six years after surgery, she is alive without recurrence. Although there is no clear evidence for radical surgery for gastric cancer with simultaneous liver metastases, these results indicate that resection may be considered in cases with small numbers of metastases.