A 71-year-old man was admitted to our hospital because of abdominal pain. An upper gastrointestinal endoscopy revealed a type 3 tumor in the lesser curvature of the gastric body. A computed tomography (CT) scan showed synchronous liver metastasis in liver S6 and S8, and a large 8a lymph node that could be encased within the common hepatic artery. The patient was diagnosed with gastric cancer with liver metastasis, Stage Ⅳ, and treated with chemotherapy (S-1 plus CDDP). After 3 courses, a CT scan showed that the liver metastasis in S8 was reduced in size.The one in S6 completely disappeared. The 8a lymph node was also reduced in size and revealed to be separated from the common hepatic artery. Total gastrectomy (D2) and radiofrequency ablation (RFA) for the S8 lesion were performed. The postoperative course was favorable and the patient was treated with postoperative adjuvant chemotherapy consisting of S-1. No recurrence has been observed for 17 months after diagnosis. After chemotherapy, if R0 resection is performed, surgical resection and RFA for liver metastasis may be a useful option for gastric cancer with liver metastasis.