The extension of infiltrating gastric cancer through the gastrocolic ligament into the transverse colon appears to be relatively common, but metastases from the ileocecal valve to the sigmoid colon are rare conditions and have been reported in only a few cases. Although direct invasion of tumor cells into the transverse colon and peritoneal dis-semination through the entire colon was a main cause of colon metastasis of gastric cancer, variable other causes were divided, by method of invasion to other organ. There are a few description for endoscopic finding of metastatic colon cancer. A 45-year-old man was admitted to our hospital because of epigastric discomfort and pain for 3 months ago. He was confirmed to have diffuse infiltrating adenocarcinoma (Borrman type IV) by gastro-duodenoscopy, endoscopic ultrasonography, and diagnosed as the colonic invasion by the colonoscopy and biopsy. We report a case of advanced gastric cancer with colon metastasis and review its pathogenetics and endoscopic characteristics from relevant literature.